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Blue 380
28-09-2007, 11:44 AM
Guys

Got a new straight thru rear muffler fitted yesterday. Definetely helps it rev out better & now pushes harder at the top end but unfortunately its a little too loud for my wifes liking. Therefore, it goes back next Tuesday for a quieter one. If anyone wants a 1 day old straight thru muffler with oval chrome tip for $60, PM me.

lenda
28-09-2007, 11:46 AM
ohhh mate thats gotta suck, got any pics of her before it gets taken of again!!!!

Knotched
28-09-2007, 11:53 AM
Ha ha!

What size did you get?

Just tell her you now need the new 90mm intake to make it quieter! :badgrin:

Type40
28-09-2007, 01:47 PM
Guys

Got a new straight thru rear muffler fitted yesterday. Definetely helps it rev out better & now pushes harder at the top end but unfortunately its a little too loud for my wifes liking. Therefore, it goes back next Tuesday for a quieter one. If anyone wants a 1 day old straight thru muffler with oval chrome tip for $60, PM me.
I have mine booked in tomorrow for a muffler change as well. I told them i don't want to ruin the quietness of the car so they are fitting one up for me to give the green light to before they fit it properly. I am seriously hoping for a good gain in performance... :D

Blue 380
28-09-2007, 02:10 PM
No pics of it. Its a 2 and a quarter inch 'Swift' brand. He actually held it up & let me listen to it before welding...it sounded good but it wasnt until I actually got it fitted & drove it (cant do that without welding) that I realised it was considerably louder from inside the car than out.

As I mentioned, it fells like it revs out more freely but the sound is too much for my wife. The result being $235 down the drain (those oval chrome tips arent cheap)...needless to say, I'm not in a particulary good mood right at this moment!!! I just hope someone wants it.

Phonic
28-09-2007, 02:18 PM
No pics of it. Its a 2 and a quarter inch 'Swift' brand. He actually held it up & let me listen to it before welding...it sounded good but it wasnt until I actually got it fitted & drove it (cant do that without welding) that I realised it was considerably louder from inside the car than out.

As I mentioned, it fells like it revs out more freely but the sound is too much for my wife. The result being $235 down the drain (those oval chrome tips arent cheap)...needless to say, I'm not in a particulary good mood right at this moment!!! I just hope someone wants it.

Re-use the tip, I've chopped and rewelded the same tip 3 times now...lol

Trotty
28-09-2007, 04:34 PM
Why dont you keep it and just put another mid mounted muffler in? Or maybe get a baffle welded in?

Type40
28-09-2007, 04:47 PM
Why dont you keep it and just put another mid mounted muffler in? Or maybe get a baffle welded in?
Getting a baffle welded in would most likely reduce the flow to the point that it would be worse than the original muffler and probably cost more in labour than getting a new (quieter) one anyway. And adding another muffler to the system will just be untidy and add yet another restriction. :confused:

Trotty
28-09-2007, 05:09 PM
The mid mufflers are usually straight through aswell, just give you a little more baffling! no more backpressure, no more restriction. :nuts:

And unless the baffle is welded in by a goose, it shouldnt be worse than the original.
And it's to keep the wife happy, cant have everything your own way!!:bowrofl:

Knotched
28-09-2007, 05:11 PM
I'm surprised it's too loud. Mine no longer has the cat or standard resonator both of which reduced the noise somewhat...

Maybe it's just my age (46 :D ) and I can't hear anything much anymore.
My 2 yo boy is happy but his first word ever was "car!" :bowrofl: .

Blue 380
28-09-2007, 05:27 PM
I will be replacing it with a muffler (cost $180 fitted - hopefully cheaper if I can re-use the tip) I had on my old TH which sounded pretty much like a TJ Sports/VRX. I actually wanted something just a tad louder but achieving that result is proving to be somewhat difficult. I did consider what Trotty suggested about another mid mounted muffler/baffle but I also thought that would be more restrictive & if that still doesnt give me the desired effect, I'm up for more cash again, AHHHH!!!

And Knothced, it is pretty loud...even worse for my 2 young boys who sit in the back.

SH00T
28-09-2007, 05:28 PM
My 2 yo boy is happy but his first word ever was "car!" :bowrofl: .
Gold Brother Gold

Knotched
28-09-2007, 10:20 PM
And Knothced, it is pretty loud...even worse for my 2 young boys who sit in the back.

Nah, fair enuff...just a razz! :)

It's a different muffler to mine too. Just make sure your replacement is a straight thru. If it's the same dimensions as the standard fit, you should be OK as far as loudness. Also I just used the standard tip rewelded because it looks good IMHO and works out cheaper.

Blue 380
29-09-2007, 06:12 AM
I actually wanted to keep the standard tip as I also like the look of them but the exhaust guy reckoned he wouldnt be able to remove it & then re-use it....looks like I've been ripped off.

I'm a bit dissapointed your young blokes fiirst word wasnt Mitsubishi!!!

Type40
29-09-2007, 06:22 AM
I actually wanted to keep the standard tip as I also like the look of them but the exhaust guy reckoned he wouldn't be able to remove it & then re-use it....looks like I've been ripped off.
Umm... That sounds very suss. When i got the quote to do mine i asked if i could keep my tip and they said yep, no problem. I wouldn't be too happy if i were you. :rant:

Blue 380
29-09-2007, 06:33 AM
Believe me, I'm not happy at all. When I suggested keeping the standard tip, he said sometimes they can do that. He walked out, looked at it and said he wouldnt be able to get it off... however thats now 2 people that have re-used them. When the new muffler goes on Tuesday, I will just tell the guy to recycle it, I wont even give him the option.

The new muffler I will be getting is probably about the same size as a standard one but when I asked the guy if its straight thru, he said if you dropped a set of keys in one end, they would fall straight out the other end - I guess that means its straight thru!!

Type40
29-09-2007, 08:58 AM
I called in to the exhaust shop earlier today and he said to me that unless i want the car noisy then i shouldn't bother with a muffler change. He had done a few and they all drone. Also there would be neglegable power gain if i change the muffler if at all.... To me he was honest. Why would you turn a paying customer away if there was a quid to be made? Your thoughts?

Phonic
29-09-2007, 10:54 AM
I called in to the exhaust shop earlier today and he said to me that unless i want the car noisy then i shouldn't bother with a muffler change. He had done a few and they all drone. Also there would be neglegable power gain if i change the muffler if at all.... To me he was honest. Why would you turn a paying customer away if there was a quid to be made? Your thoughts?

Thats what all us Magna boys used to get told when we first started modyfing them, when the TF was still only 3-4 years old....lol

Blue 380
29-09-2007, 11:02 AM
I couldnt agree more....I asked 2 different exhaust places & they both said the piping on the 380 is pretty good, the only benefits are in replacing the restrictive rear muffler - so they could have charged me for a full system but didnt.

Although I've mentioned it before, the muffler I'm getting next week is the same as on my old TH and that did feel like it revved out a bit more freely & had a slight note to it. You couldnt notice a difference in sound from inside the car, only if you wound down the window & even then it was very subtle, definetely NO drone what so ever. The guy reckons they were designed specifically for Magna's/380 so I will keep you all posted on any improvements after fitting.

Sports
29-09-2007, 03:37 PM
Just get a hotdog fitted, it will take away the drone and took mine from 93.9db to 89.9db and then I got another one fitted and it took off another 3db. I have 3 hotdogs which are straight through and a muffler out the back and have no drone what so ever and it's still got a good amount of noise. Mines supercharged though.

As long as the straight through muffler is a decent sized one you're on a winner, if it's short it will do **** all.

Knotched
29-09-2007, 04:29 PM
.. there would be neglegable power gain if i change the muffler if at all.... To me he was honest. Why would you turn a paying customer away if there was a quid to be made? Your thoughts?

Seriously, that is complete BS from the shop.

You know my testimony in the other thread; you will actually have a top end that you don't have now. Blue 380 found the same. Your engine ATM has no useful power above 4500-5000rpm.

The power gain is considerable and much better and more tangible than the 90mm intake.

BiG 4 CyL
29-09-2007, 04:29 PM
I'm surprised it's too loud. Mine no longer has the cat or standard resonator both of which reduced the noise somewhat...

Maybe it's just my age (46 :D ) and I can't hear anything much anymore.
My 2 yo boy is happy but his first word ever was "car!" :bowrofl: .

if only chris was on the same page ay hahah

Knotched
29-09-2007, 04:38 PM
if only chris was on the same page ay hahah

Hey Tim
What if I am, I could drag you on my pushbike. :P

Chris

BiG 4 CyL
30-09-2007, 07:52 PM
Hey Tim
What if I am, I could drag you on my pushbike. :P

Chris

hahahah well played sir. get him on here more often mate! hah

Blue 380
03-10-2007, 05:14 PM
Just got my noisy rear muffler replaced with a quieter straight thru & the results are remarkable. The car would now be quicker than my old TH - I just cant believe how much more powerful it feels just from a new muffler. It pushes harder & revs out heaps better all for the cost of $148 fitted (re-used the chrome tip). I would strongly recommend to anyone who wants a good power gain for very little cost to go with this mod. I can find out the brand name if anyone is interested. You can hear it from the drivers seat when you boot it but definetely not loud.

Ordered the K & N from RPW so hope to get even more out of it when that arrives.

SH00T
03-10-2007, 05:49 PM
Does that interfere with third cat?

Blue 380
03-10-2007, 06:03 PM
No, I did not get the 3rd cat removed. I asked the exhaust guy about it & he said he would strongly recommend not removing it (but bearing in mind this was the same guy who told me I couldnt re-use the standard tip - I should mention I went to a different exhaust place today to get my new muffler). I had considered removing the cat and PM'd Knotched about it but upon hearing his is now running rich, I decided against it. Hopefully when he gets the tune sorted out it will fix that problem.

vrx boy
03-10-2007, 06:04 PM
So, blue 380 did you only replace the rear muffler? The exhaust shop I went to said that the 380 had a pretty decent exhaust already and they just cut the rear one off, and after hearing a few different ones I went with a ''megaflow'' straight through muffler with 2 x 2 1/2inch tips. It soundz gr8 and there is no droning whilst still keeping the interior reasonably quiet!:cool:

Knotched
03-10-2007, 06:10 PM
Just got my noisy rear muffler replaced with a quieter straight thru & the results are remarkable. The car would now be quicker than my old TH - I just cant believe how much more powerful it feels just from a new muffler. It pushes harder & revs out heaps better all for the cost of $148 fitted (re-used the chrome tip). I would strongly recommend to anyone who wants a good power gain for very little cost to go with this mod.

Good onya :D

I feel the gain for a manual would be even better than I got. It's a shame Mitsubishi just didn't fit a less restrictive muffler for the VRX/GT models in the first place.

Blue 380
03-10-2007, 06:17 PM
Thats right, I only replaced the rear muffler - the rest of the exhaust is standard (2 different exhaust shops told me the piping on the 380 is good, just the rear muffler is restrictive). Its good to hear you dont get any drone with the megaflow but the muffler I got put on last week (replaced today) did drone considerably and was just too loud. Have you noticed any improvement in performance with the megaflow?

auspest
03-10-2007, 06:18 PM
Blue 380,
what location id the rear muffler for you. I am interested in doing the same

vrx boy
03-10-2007, 06:22 PM
Yeah performance is little better, seems to have more bottom end particulary reving out in 2nd and 3rd. Hopefully next week iam going to put it on the dyno to see what it's got before I do anything else to it.

Blue 380
03-10-2007, 06:39 PM
Knotched I agree - surely Mitsubishi could have forked out a little more for a rear muffler for the VRX liked they did with the TJ Sports/VRX. If it cost me $148 fitted, it would have been even less cost to them!!

I got the muffler done at Penrith Muffler Man in Kingswood (western sydney). I have always gone to him for exhaust work but for some reason went to a different shop last week when I got the noisy one put on - something I'm still regretting now!!!

BloodAsp
04-10-2007, 04:37 PM
I'm getting a new high flow muffler mounted on Saturday, i actually approached the company about removing the 3rd cat and was told that it's illegal how true is that?

Also what brand/type would you people suggest i get installed, they say it will be about $130 to get it done i gather thats a good price for what appears to be a good gain.
Also does anyone know where in Melbourne i could source a K & N filter?

Blue 380
04-10-2007, 05:18 PM
I'm not sure if removing the 3rd cat is illegal. If it is, I would imagine that would be a difficult thing to police because who would really know you had removed it?

I'm very happy with the muffler I got but I'm not sure what brand it is. The exhaust guy reckons it was designed specifically for Magnas/380's ie dyno tested. If you want to know, I can find out what brand it is. I would think $130 (fitted?) is a very good price for a straight thru.

Regarding the K & N, I contacted a number of places & they all said they dont make them yet for the 380 but I've since found out they are apparently the same as the US Galant. I'm in Sydney & have just ordered one from RPW (in Perth) which will cost $160 delivered.

VR33XY
04-10-2007, 05:26 PM
Knotched I agree - surely Mitsubishi could have forked out a little more for a rear muffler for the VRX liked they did with the TJ Sports/VRX. If it cost me $148 fitted, it would have been even less cost to them!!

There exists a thing called design standards. Your muffler probably would not meet noise/emission restrictions, nor would Mitsu have the budget to design and compliance a new one (they are on the ropes in Aus). And another concept to mull over is the idea that maybe this was done to meet future regulations as many companies are doing. It adds to their image in the marketplace.

SH00T
04-10-2007, 05:30 PM
91.00 plus GST
K&N 33-2285 $91 + GST./in stock.
Freight Approx $15.

We accept Credit Card and Direct Deposit payments only.

Regards,
Jason Sammut
Sales / Email Enquires
Rocket Industries
Ph. (02) 8825 1900 EXT.140
Fax. (02) 8825 1957
E: sales@rocketind.com
W: www.rocketind.com

I beleive this is the same filter as the one Knotched ordered, I would rather support people that supports us but 50 bucks more, I might not.

Blue 380
04-10-2007, 05:45 PM
I rang Rocket Industries Tuesday morning & they told me they dont have them for a 380. I'm a bit p!ssed off to find out they do becasue I could have driven there in 30mins from my place & picked one up for $100 rather than order one thru RPW for $160.

Blue 380
04-10-2007, 06:18 PM
There exists a thing called design standards. Your muffler probably would not meet noise/emission restrictions, nor would Mitsu have the budget to design and compliance a new one (they are on the ropes in Aus). And another concept to mull over is the idea that maybe this was done to meet future regulations as many companies are doing. It adds to their image in the marketplace.

I'm a little confused by your comments - I'm the first to admit I know very little about design standards but considering Mitsubishi did exactly what I'm talking about in 2003 with the TJ, why didnt it affect noise/emission restrictions then? (I did state in my post that the muffler I now have would be no louder than a TJ Sports/VRX setup). I acknowledge Mitsubishi are worse off financially now than in '03 but the cost of such muffler could have been reflected in the price of the VRX. And finally, your remark about image in the marketplace is precisely what I'm talking about - they marketed the VRX/GT as a drivers/sports vehicle so why not give the owners that are shelling out well over $30000 for their car something a little sportier than the base model 380?

Type40
04-10-2007, 06:52 PM
Its interesting to read comments about ADR noise standards. I went to a different exhaust shop the other day to get a quote for a muffler saying that i want it quiet and not a bellowing mess and he informed me that he couldn't sell me a muffler for my car that exceeded 90db. This was to do with the relevant noise standards that my car had to adhere to when it was manufactured. So, it seems he can supply me a straight through multifit Redback muffler (that meets noise standards) with my tip for approx $200 fitted. So, we shall see how well it goes when i get that done.

As for developing a separate muffler specific to the GT and VRX, im not too sure of the costs involved but when you are as cash strapped as MMAL are you need to save pennies everywhere. Remember that the 380 was developed to have 2 different powertrains and MMAL canned the lower power version of the 3.8 and the 4 speed auto and went with the high output and 5 speed combo in all its variants to save development dollars.

SH00T
04-10-2007, 08:47 PM
I rang Rocket Industries Tuesday morning & they told me they dont have them for a 380. I'm a bit p!ssed off to find out they do becasue I could have driven there in 30mins from my place & picked one up for $100 rather than order one thru RPW for $160.

Yeah, that sucks BAD

After finding the RPW site, I followed the K&N link and RPW says the importers are rocket industries:nuts:
I went to K&N USA and found the Galant 3.8 F/I 33-2285, under $60.00 U.S. I might add.
And then some cool Magna Member found the info on RPW qouting that part Number 33-2285 on their site.
I just googled the part number in Aus and it gets a hit on a PDF from Rocket Industries.
I just don't think Rocket has made the connection yet.

I want to find a U.S. that can post the Galant intake and the K&N to me.

http://www.rpw.com.au/shop/index.php?option=com_virtuemart&page=shop.product_details&flypage=shop.flypage&Itemid=31&category_id=76&product_id=1307

SH00T
13-10-2007, 05:16 AM
Finally decided on a rear Muffler, a Lukey Sports LR2779, Straight through. I had one on an old mitsubishi, Not loud, No Drone a bit louder and quiet a nice note. ( A really popular muffler round here, Search it)
Gonna give the 90mm intake a miss. But the K&R 33-2285 will go on when I can find one in stock.

The original Exhaust part Number is J18-42 on a 12-05 DB for those who want to know.
Birklee exhaust have a similar unit to the LR2779 called the BSO655 saving around $50.00.
I will get the Lukey.
And I can re use the old tip but a 2.5" to 3" stainless angle cut tip will be around $40.00

Blue 380
13-10-2007, 11:47 AM
Finally decided on a rear Muffler, a Lukey Sports LR2779, Straight through. I had one on an old mitsubishi, Not loud, No Drone a bit louder and quiet a nice note. ( A really popular muffler round here, Search it)
Gonna give the 90mm intake a miss. But the K&R 33-2285 will go on when I can find one in stock.

The original Exhaust part Number is J18-42 on a 12-05 DB for those who want to know.
Birklee exhaust have a similar unit to the LR2779 called the BSO655 saving around $50.00.
I will get the Lukey.
And I can re use the old tip but a 2.5" to 3" stainless angle cut tip will be around $40.00
You will have to let us know what improvement you get when the muffler goes on. Mine is a manual & I got a huge performance gain so it will interesting to see how your auto goes. You're right, the oval chrome tips arent cheap.

RPW apparently have K & N filters in stock however I ordered mine over a week ago & it was suppose to arrive last Tuesday but I still havent recieved it yet.

wastedhello
13-10-2007, 05:40 PM
i got a cannon not to long ago and HATE it. for any performance gains i got, the noise and the constant droning aren't worth it.

I went to the place i got it from today and told them i don't like the constant droning and how loud it is and he just said "I told ya so". so I'm thinking of replacing it again the bloke i asked suggested i get a berklee.

now has anybody got a berklee muffler. if so do you know how they compare to other brands such as lukey or magnaflow?

SH00T
18-10-2007, 08:05 AM
Straight Through exhaust now fitted.
The Lukey I had ordered was just too big, no-one was to know as not many people have had them modded yet. No problem for the guys at Right price exhausts on moss st.
They pulled a Supercat 2 and 3/4 inch Megapower exhaust off the shelf and within an hour, I payed the bill and drove off. The fuddy duddy in me missed the absolute serenism of driving the stock 380, so quiet you get the feeling of isolation from the noisy world around me. Then something happened, a long lost person I remember from long ago emerged from within and gained control of my right foot and the muscles I use to smile. Its not loud at idle but you know its there with a deep rumble heard from the outside, not heard at from the inside (windows up). Its a lot louder between 2-4 grand and the rumble disappears replaced by a barky growl, at revs beyond that it purs away until the taco drops. The top end is now a part of the driving style is you choose it. No noticeable droning, but I reckon I could get it to under very heavy loads, though that would take a deliberate effort.
Now it got the sounds to match the way it goes.

Cost about $199, for the Super cat $80, 3" Stainless angle cut tip $42, odds and sodds $11 and 55.00 to fit, then add gst.
I've used Price Right Exhausts twice before, the workshop was clean, guy who did the work was sensible and their advice was spot-on, they even sprayed the muffler black so the S/S tip stands out.

Will share a few more thoughts after a week or so, or when the Missus finds out.lol

Blue 380
18-10-2007, 09:18 AM
Well done mate!!! Good to hear you are happy with it, particularly no droning. I would also think you got a very good price at $199 for muffler & exhaust. You will have to keep us informed over the next few days as to any performance gains you experience.

I'm still amazed at the improvement I got from just changing the rear muffler (and cutting away the rubber seal under the bonnet in front of the air intake)....without exaggerating, it feels like the car has an extra 10 - 15 kws. If you've gone a 2 3/4 exhaust in addition to the muffler, you should get even more gain.

SH00T
18-10-2007, 10:50 AM
Flamin technical lingo, I have had no piping changed,except from the rear flange back. Done only the rear muffler and tip. I will look a the cutaway, and thats with a K&N I presume.

EDIT:
I see what you mean, I can carefully pull it off the clips, to give it a trial run.
Then I can cut it if needed.

The horizontal part of the front grill could also possibly support a hole and vent system
for tubing for more cold fresh air.

Knotched
18-10-2007, 01:21 PM
Good stuff, SHOOT.

When you get a chance, maybe accelerating onto the highway, put it into tiptronic mode, select 2nd and boot it hard. You should really feel the difference past 3000 rpm right up to 6000.

To me, this has to be the first and most significant mod for anyone contemplating the 380.

SH00T
18-10-2007, 04:51 PM
Yeah, before, the power really fell away past 4500 rpm, now I change before the power lulls, second gear is a real treat, 100 comes on pretty fast now. I liked third gear from 80kph and up:badgrin: .
I also took the first rubber off its clips in front of the intake too, tucked it into the bonnet latch hole. Whichever intake you have in place, the air it draws is from between those two rubbers (at each end) and the cutout hole in the radiator brace just in front intake.:disgusted
I'll drive for a week like that then swap it back, see which I prefer.
Back to the car-
Its way louder now though, I kinda feel, well, naughty:badgrin: . But it sure feels like a different car now.

Knotched
18-10-2007, 05:08 PM
Its way louder now though, I kinda feel, well, naughty:badgrin: .

:bowrofl:

welcome to the Darkside, brother :badgrin:

Type40
18-10-2007, 05:18 PM
I did my rear muffler today too... Not entirely convinced. :doubt:

SH00T
18-10-2007, 05:23 PM
I did my rear muffler today too... Not entirely convinced. :doubt:
Power increase or sound? Or Both

Type40
18-10-2007, 05:26 PM
Power increase or sound? Or Both
It sounds better in my opinion. Similar to my old TF but more restrained. There is absolutely no drone at 100 km/h (revs at 2600 remember) but as for a power increase... Not sure. I wont rule it out but i'm not getting the results that everyone else seems to be achieving.

SH00T
18-10-2007, 05:50 PM
I wont rule it out but i'm not getting the results that everyone else seems to be achieving.

The telltale signs of power increase for me was the forces on my body pushed to the seat, now is fairly constant above 4000, and the auto seems to sense the power too, using the higher revs when its planted more than before i.e. changing later.

Blue 380
19-10-2007, 09:14 AM
It sounds better in my opinion. Similar to my old TF but more restrained. There is absolutely no drone at 100 km/h (revs at 2600 remember) but as for a power increase... Not sure. I wont rule it out but i'm not getting the results that everyone else seems to be achieving.
Thats very surprising, particularly with a manual. I got a massive gain right across the rev band. It keeps pushing very hard all the way to 6000 and yet feels very torquey if you let the revs drop in 3rd & then boot it, it pulls really hard. Still waiting on the K & N - over 2 weeks now.

SH00T
19-10-2007, 04:01 PM
I had Autobahn in Slacks Creek ring Rocket Industries, The Gal said out of stock til November, and that K&N was not well represented in OZ and they were looking for another distributor, Yup you heard it first at aussiemagna.com

And she really goes hard above 4000.
And the auto does about 1600 RPM at a mile a minute.

BloodAsp
19-10-2007, 05:25 PM
Can anyone throw me the part number for the K&N from rocket, i went to a local autobahn today and they couldn't find the part.
They also tried to convince me to put a pod on the engine...and HID's.....which brought up an interesting point the airfilter is sucking in hot air more or less direct from the fan....i wonder if some kind of system to cool that air would make a diff in performance?

Knotched
19-10-2007, 05:43 PM
I had Autobahn in Slacks Creek ring Rocket Industries, The Gal said out of stock til November, and that K&N was not well represented in OZ and they were looking for another distributor, Yup you heard it first at aussiemagna.com


Ha, I almost rang them today. I'll have to wait for sure now :)

Blue 380
19-10-2007, 07:33 PM
Can anyone throw me the part number for the K&N from rocket, i went to a local autobahn today and they couldn't find the part.
They also tried to convince me to put a pod on the engine...and HID's.....which brought up an interesting point the airfilter is sucking in hot air more or less direct from the fan....i wonder if some kind of system to cool that air would make a diff in performance?
I got notification in the mail today indicating my K & N is at my local post office ready to be picked up. I'm pretty sure they are open Saturdays so I will pop down 1st thing and get it. I ordered mine from RPW (took 2 weeks) after contacting a number of parts places including Rocket Industries only to be told they dont make them yet for 380's. I will fit it tommorow & start a new thread.

I just went for a drive in my car (its a coolish evening) & the power difference its got now compared to when I bought it is just ridiculous - it just seems to be getting faster & faster!! I can only think perhaps Type 40 didnt get the muffler he requested because all I have done to mine is change the rear muffler & cut the rubber seal away from the front of the air intake so now it is sucking in cold air from outside rather than hotter air from under the bonnet. Next I'm considering increasing the size of the hole in the vorizontal plate in front of the intake which should allow even more fresh air in thru the grill.

Type40
19-10-2007, 07:46 PM
I can only think perhaps Type 40 didnt get the muffler he requested because all I have done to mine is change the rear muffler & cut the rubber seal away from the front of the air intake so now it is sucking in cold air from outside rather than hotter air from under the bonnet.
I have actually removed my rubber strip from under the bonnet so i am getting the good air too! The muffler i have is a Redback straight through multifit one. I agree with BLUE VRX when he says its getting better and better. Mine is slowly improving. I don't want to get too excited just yet...

SH00T
19-10-2007, 09:07 PM
Ha, I almost rang them today. I'll have to wait for sure now :)
We may as well order at the same time, I'm sure that'll save Postage.
And was that part number 33-2285

Knotched
20-10-2007, 04:38 AM
I have actually removed my rubber strip from under the bonnet so i am getting the good air too! The muffler i have is a Redback straight through multifit one. I agree with BLUE VRX when he says its getting better and better. Mine is slowly improving. I don't want to get too excited just yet...

Well, that's a relief, considering I'm one of the ones egging you on to get it done! :redface:

BiG 4 CyL
20-10-2007, 09:33 AM
Well, that's a relief, considering I'm one of the ones egging you on to get it done! :redface:

dont make your systems too highflow :doubt:
i did that once and i sat at the lights in first for about 3 hours... took a while to get to 60 lol

SH00T
06-11-2007, 05:14 PM
mmmmm, I'm full. I ate my first commodore todaylol

Type40
06-11-2007, 06:07 PM
mmmmm, I'm full. I ate my first commodore todaylol
They are quite a delicacy arent they? I get a little flux after i have eaten mine but a Quickeeze and im all good again! lol

Satan
06-11-2007, 06:09 PM
They are quite a delicacy arent they? I get a little flux after i have eaten mine but a Quickeeze and im all good again! lol

Eat the brand new E series HSV GTS's that I GET TO DRIVE then!

Type40
06-11-2007, 06:19 PM
Eat the brand new E series HSV GTS's that I GET TO DRIVE then!
Thats nice of your parents to let you drive the family bus. I hope you are a responsible person and treat it with the respect that 300 + killerwasps deserves. lol

Satan
06-11-2007, 06:21 PM
Thats nice of your parents to let you drive the family bus. I hope you are a responsible person and treat it with the respect that 300 + killerwasps deserves. lol

Um no, I work at a Holden Dealer... I deliver cars...
And dont get too jealous... ;)

As for respect: Oh with the upmost! I talk to them, and rub them in places they could never imagine... ohhh babyyyy!

Type40
06-11-2007, 06:27 PM
Um no, I work at a Holden Dealer... I deliver cars...
And dont get too jealous... ;)
Im trying not to... I take it you would be on a first name basis with the owners of the "E" series when they are bringing it back for recalls and warantee work. lol


As for respect: Oh with the upmost! I talk to them, and rub them in places they could never imagine... ohhh babyyyy!
Mmmm, Bizarre sexual fetishes have no place on AMC. I am fine with you having them but i think you shouldn't be advertising them here! :D

Satan
06-11-2007, 06:29 PM
I take it you would be on a first name basis with the owners of the "E" series when they are bringing it back for recalls and warantee work. lol

Surprisingly to you, they never have issues with them. Maybe one out of every 30 customers has "a noise" or something checked out.
We dont actually sell too many HSV's as compared to regular Holdens

Type40
06-11-2007, 06:33 PM
Now look what i started! Apologies. Now back to the muffler thread...lol

Knotched
06-11-2007, 06:47 PM
I never have any Commodores for breakfast. They hear my exhaust and turn away...
I seem to atract Skylines, WRXs and Silvias, all of which are too big a mouthful for a NA.
My next door neighbor has a VE Senator; great car but in a different class that I would never challenge as a six, but he really likes my 380. Guy across the road with his double story house and boys toys has a a grey 380GT as well.
They're popular around here.

Blue 380
07-11-2007, 05:19 PM
Guy across the road with his double story house and boys toys has a a grey 380GT as well.
They're popular around here.
Has he done anything interesting to his GT? I'm guessing thats his house & car in the background of the photo in your public profile...

GoTRICE
07-11-2007, 07:39 PM
I seem to atract Skylines, WRXs and Silvias, all of which are too big a mouthful for a NA.
.

minus the start id back you to at beat a silvia/wrx. Skylines are pretty quick.

(auto v auto)

Knotched
07-11-2007, 09:34 PM
minus the start id back you to at beat a silvia/wrx. Skylines are pretty quick.

(auto v auto)

Thanx for your vote :D , but nah, I'll save it for the 1/4 mile when I get there...

(and if you get someone who can drive, the WRX can launch very hard, as you've pointed out)

cheers.

Knotched
07-11-2007, 09:40 PM
Has he done anything interesting to his GT? I'm guessing thats his house & car in the background of the photo in your public profile...

No, (and yes, his house, not mine :badgrin: ) his is stock.

Foozrcool
13-11-2007, 03:09 PM
Ok guys here are some pics of my dual exhaust setup & extractors.

Foozrcool
13-11-2007, 03:11 PM
More pics

Knotched
13-11-2007, 03:22 PM
Awww... noice!


I was really interested in how the rear bank joins/meets the front and how they've done the 180 degree turn. It's been done well and looks like they've tried to keep the radius as large as possible.

So how do you feel the car has responded?
Increased the mid and high range torque or just mid range?

I know it might be hard to quantify; in my experience my seat of the pants feel has been wrong more than once :doubt:

Blue 380
13-11-2007, 03:27 PM
Is that 2 resonators I can see? If so, why 2?

Foozrcool
13-11-2007, 03:50 PM
Awww... noice!


I was really interested in how the rear bank joins/meets the front and how they've done the 180 degree turn. It's been done well and looks like they've tried to keep the radius as large as possible.

So how do you feel the car has responded?
Increased the mid and high range torque or just mid range?

I know it might be hard to quantify; in my experience my seat of the pants feel has been wrong more than once :doubt:

The whole car is more responsive down low right through. Mid to high pulls very strong. I would highly recommend them, extremely happy with the gains. (& that is over the original dual exhaust setup) The CEL hasn't come back on since I reset it either.

Foozrcool
13-11-2007, 03:52 PM
Is that 2 resonators I can see? If so, why 2?

Dunno, that's how it was when I picked it up from the dealer originally. I think with one it might be to loud. Since I put the extractors on it's on the verge of being too noisy but I love it!! (Deep reverb right through the car .... cool)

Type40
13-11-2007, 04:00 PM
It there any way of keeping the cats that are bolted to the exhaust manifolds and carry them over to the extractors? I will look into this if i can keep the cats.

Knotched
13-11-2007, 04:21 PM
It there any way of keeping the cats that are bolted to the exhaust manifolds and carry them over to the extractors? I will look into this if i can keep the cats.

I don't think there is any chance, dave.

My reasoning is if you look at the original setup, the headers all converge straight into the cat and then single pipe to the join - see pic;

http://i189.photobucket.com/albums/z179/Krossbolt/Car%20Pics/My%20Car/Manifold/30Oct002reduc.jpg

The extractors run single pipes off each cylinder much further before joining - they are tuned length. the cat would kill the benefit.

Type40
13-11-2007, 04:26 PM
I don't think there is any chance, dave.


I should have bought that f*cken TW... :rant:

Knotched
13-11-2007, 04:28 PM
(& that is over the original dual exhaust setup) .

Hey, yeah, that is good. We've experienced the big gain changing the muffler so if you can say that the extractors are another big gain, particularly in the top rpm range, thats the best outcome we could all hope for.

Proof will be on the dyno and as I said before, I predict you'll pick up another 15hp with an interceptor.

Knotched
13-11-2007, 04:30 PM
I should have bought that f*cken TW... :rant:

Don't worry, mate, cats are for pussies :bowrofl: :badgrin:

J/joking, I'm not getting rid of mine yet either :)

Foozrcool
13-11-2007, 04:39 PM
I will look into this if i can keep the cats.

What's the prob, there is still one token cat in place .... although purely to part the O2 sensors!!

We need to undo these silly ADR rules & get these 380's going!!

Just had notification that my 70mm throttle body is ready to be sent, still waiting on the 90mm inlet. They must be good for another 15kw surely?

Everything is 15kw .... 10 mods = 150 kw ...... cool!

Type40
13-11-2007, 04:44 PM
What's the prob, there is still one token cat in place .... although purely to part the O2 sensors!!

We need to undo these silly ADR rules & get these 380's going!!
I agree whole heartedly... I really want to know exactly if 3 cats are required for Euro3. But i dont want the fine that comes with taking the things off...


Just had notification that my 70mm throttle body is ready to be sent, still waiting on the 90mm inlet. They must be good for another 15kw surely?
I thing the 70mm will make the throttle more sensitive but im not sure about peak power, but the 90mm intake is worth its weight in gold!

Foozrcool
13-11-2007, 04:52 PM
I agree whole heartedly... I really want to know exactly if 3 cats are required for Euro3. But i dont want the fine that comes with taking the things off...

What's the chances of the coppers knowing what they are looking at under a 380 bonnet anyway?

I think the 70mm will make the throttle more sensitive but im not sure about peak power, but the 90mm intake is worth its weight in gold!

Yep well more out made a huge difference so I'm hoping more in will too.

Then all I need is the computer to take full advantage of all the mods!

Knotched
13-11-2007, 04:59 PM
Then all I need is the computer to take full advantage of all the mods!

You've hit the nail.

I've done a little research and the only interceptor I know is available right now for the 380 CAN (controller area network) type setup is the Chiptorque Exide. Chiptorque have already done a number of manual 380s with extractors (they were barely getting the output my car is now)
You've mentioned the Unichip. Have you looked into this in detail?

Foozrcool
13-11-2007, 05:03 PM
You've hit the nail.

I've done a little research and the only interceptor I know is available right now for the 380 CAN (controller area network) type setup is the Chiptorque Exide. Chiptorque have already done a number of manual 380s with extractors (they were barely getting the output my car is now)
You've mentioned the Unichip. Have you looked into this in detail?

CNJ Motorsport did my other cars & they said the new Unichip Q should do it. However if it doesn't they said they can map the crank trigger with a scoping device, email it to Melbourne & within a week or so they will write a map to suit. Easy as that!

They aren't a real fan of the Exede.

vrx boy
13-11-2007, 06:50 PM
so who's the company making extractors for 380 now? Or have they been custom made?...Iam dying to put some on mine...

Foozrcool
13-11-2007, 09:06 PM
so who's the company making extractors for 380 now? Or have they been custom made?...Iam dying to put some on mine...

RPW in Perth

Knotched
13-11-2007, 09:56 PM
CNJ Motorsport did my other cars & they said the new Unichip Q should do it. However if it doesn't they said they can map the crank trigger with a scoping device, email it to Melbourne & within a week or so they will write a map to suit. Easy as that!

They aren't a real fan of the Exede.

Good stuff. I looked them up; they're at Underwood. I'm just up the highway a bit. I'll wait for you to get yours done and may go the same way.

If you get a quote on the Unichip can u PM me?

Grubco
16-11-2007, 12:24 PM
What are some of the better/best brands of muffler that people here are using? (ie just to replace the rear muffler)

Knotched
16-11-2007, 12:40 PM
Sh00t and I have Supacat straight thru mufflers - his is bigger and quieter.

Sports
16-11-2007, 04:24 PM
RPW in Perth


Liverpool exhausts in NSW actually, RPW gets them to make them

Blue 380
16-11-2007, 06:38 PM
Liverpool exhausts in NSW actually, RPW gets them to make them
Thats intersesting, I wonder how many people are aware of that? I appreciate RPW are supporters of this site however I would think for those nearby, a reasonable sum could be saved by buying direct from Liverpool....

auspest
26-11-2007, 07:52 PM
[Back to the car-
Its way louder now though, I kinda feel, well, naughty:badgrin: . But it sure feels like a different car now.[/QUOTE]


Shoot,

Looking at doing the rear muff soon. How much louder is the supercat ??

SH00T
26-11-2007, 09:19 PM
Its louder starting. At idle and cruisin its quiet. From light acceleration to heavy, and going up hills, you know you had the exhaust done. No way near a canon tho.
Come around and we'll go for a ride. Hear for yourself.
I know its louder than a lukey I had an old 2nd gen. But its not too much, sure is a big change from stock.

Grubco
07-12-2007, 02:14 PM
Finally I did the muffler change on my car. I used a Berklee BS0655 (as used and recommended by Blue 380). Very nice sound, with a deep rumble to be heard when you want it, but it also runs fairly quietly if you like/need that too (ie cop in next lane).
Couldn't get much of a feel for it today as the rains bucketted down like a typhoon! Downwards, sideways... I had to limp home and could barely see the lane markings.
Anyway, will have more time over the weekend to play with it.
I guess I'm the last one to do this mod now, but if there's anyone else (with a 380) who has not done this yet, I (along with everyone else before me) heartily recommend turfing the standard rear muffler. Best power gain you will ever get (for the cost).
Hopefully my intake should be on soon too.

Knotched
07-12-2007, 02:32 PM
Let us know what you feel is the result.

There seems to be a difference in results that owners are getting with their straight thru exhausts. I thought a stright thru would have a universal effect. Maybe not.

Foozrcool has two straight thru mufflers but his car's power delivery is totally different to mine. Type40 didn't seem to get a gain at all. Sh00t and I have the same muffler and we seem to get a big gain in the mid to hi rev range.

Not sure with Blue380 where his is strongest..

Type40
07-12-2007, 02:36 PM
Let us know what you feel is the result.

There seems to be a difference in results that owners are getting with their straight thru exhausts. I thought a stright thru would have a universal effect. Maybe not.

Foozrcool has two straight thru mufflers but his car's power delivery is totally different to mine. Type40 didn't seem to get a gain at all. Sh00t and I have the same muffler and we seem to get a big gain in the mid to hi rev range.

Not sure with Blue380 where his is strongest..
You have to remember that mine is the torque limited manual version. Not the faster, more responsive and un-torque limited auto version! lol

Grubco
07-12-2007, 02:43 PM
You have to remember that mine is the torque limited manual version. Not the more responsive and un-torque limited auto version! lol

Hmmm. Strange that my muffler is exactly the same as Blue 380 (even fitted by same guy, same shop), yet from recollection of his (he kindly offered to meet up the other week so I could check his out, etc), mine sounds a tad louder/deeper. His 380 is manual, whereas mine is auto. Wasn't sure why there'd be a difference, but the above-quote plus apparent variances from car to car, is the answer I guess.
Will let you know know how it goes over coming days, but there was definately a difference in power and sound to be felt from the get-go.

Knotched
07-12-2007, 03:17 PM
Will let you know know how it goes over coming days, but there was definately a difference in power and sound to be felt from the get-go.

The ECU will take a week to adjust and it's fairly subtle, so don't go too much by initial impressions.

SH00T
07-12-2007, 03:35 PM
I'd agree, Now mine pulls like an ugly boy scoutlol

Foozrcool
07-12-2007, 04:21 PM
Let us know what you feel is the result.

There seems to be a difference in results that owners are getting with their straight thru exhausts. I thought a stright thru would have a universal effect. Maybe not.

Foozrcool has two straight thru mufflers but his car's power delivery is totally different to mine. Type40 didn't seem to get a gain at all. Sh00t and I have the same muffler and we seem to get a big gain in the mid to hi rev range.

Not sure with Blue380 where his is strongest..

Yep definately a real difference happening there. Like you said mine might improve since I have reset the computer twice since the extractors went on & being a weekender it doesn't get driven as much so the ECU will take longer to adjust. I think yours was louder, albeit a totally different sound, .... more noise = more top end?

Knotched
07-12-2007, 04:56 PM
Yep definately a real difference happening there. Like you said mine might improve since I have reset the computer twice since the extractors went on & being a weekender it doesn't get driven as much so the ECU will take longer to adjust. I think yours was louder, albeit a totally different sound, .... more noise = more top end?

Once it settles down a bit, yes, you might get a bit more out of it. But I really think the retune and interceptor are going to give you bigger gains.

Whereas I know I should get 15hp min ATW based on the graphs I showed you, I think it's quite likely you may get 20+ because of the greater potential of the extractors.

But we won't know until they get their hands on it...

Foozrcool
07-12-2007, 05:14 PM
Once it settles down a bit, yes, you might get a bit more out of it. But I really think the retune and interceptor are going to give you bigger gains.

Whereas I know I should get 15hp min ATW based on the graphs I showed you, I think it's quite likely you may get 20+ because of the greater potential of the extractors.

But we won't know until they get their hands on it...

Yes from past experience I know there will be a good gain with the interceptor. When the extractors went on I noticed a huge difference over the twin system, I'm just wondering if the stock rear cat convertor maybe a restriction as you have ditched yours & I'm still running it. A high flow cat may be the way to go?

Knotched
07-12-2007, 06:01 PM
Hi flow cat won't give you much. I had a look at mine when it was off. The hi flow just has a different flow pattern and the holes are bigger.
To be honest I wouldn't bother unless you are getting other exhaust work done as well.

On the other hand, the 380 engine seems to give a lot of different power results depending on what is done to the exhaust. It's quite surprising.

If you'd have told me the difference between your car and mine before we drove them, I wouldn't have believed you.

Foozrcool
07-12-2007, 06:10 PM
Hi flow cat won't give you much. I had a look at mine when it was off. The hi flow just has a different flow pattern and the holes are bigger.
To be honest I wouldn't bother unless you are getting other exhaust work done as well.

On the other hand, the 380 engine seems to give a lot of different power results depending on what is done to the exhaust. It's quite surprising.

If you'd have told me the difference between your car and mine before we drove them, I wouldn't have believed you.

Oh well will see what happens with the interceptor in place. Can always look at more exhaust or manifold options if I'm not happy with the final output, but i'm sure I will be. There's a huge potential there to milk the 98 octane as well as the AFR's.

Type40
08-12-2007, 01:22 PM
Well i just had my muffler changed back to my standard one and guess what? It goes exactly the same! lol Talk about placebo effect...

seadevil
08-12-2007, 01:57 PM
so......are you saying we shouldn't change our mufflers?

Foozrcool
08-12-2007, 02:04 PM
so......are you saying we shouldn't change our mufflers?

By all means change it but as Knotched said all setups seem to give different results. Just don't use the same as Type40 obviously!

Knotched
08-12-2007, 02:18 PM
Absolutely make sure it's a straight thru design. Ask to see it before it's fitted and make sure you can either see straight thru it or push a wire from one end to the other, (or drop your keys through it).

I think some mufflers being fitted aren't straight thru mufflers and that's why we are getting some strange performance results.

Mine is a Supercat muffler and the gain I realised was very significant from around 4000rpm up to 6000.

Type40
08-12-2007, 02:22 PM
I used a Redback multifit one (yes a straight through one). As i have used this brand in the past with my old Magna and had good results i stuck with what i knew.

Now, you have to remember mine is a manual and i think these are so torque limited that anything you do to them might make noise but deliver very little in the way of forward thrust.

That said i believe the auto's are no where near as limited as the manuals. I hired an auto one for a week last year in Tassie and it really did surprise me with its performance. Thats why i got the manual because i thought it would be a better performer. Even on the test drive it felt pretty punchy... Alas this was not to be.

If you want a manual go for a Magna. They have a little thing called an accelerator cable connecting the pedal to the throttle butterfly so when you give it 100% right foot the butterfly opens 100%. Quite a novel concept really.

Knotched
08-12-2007, 02:31 PM
It's just weird :nuts:

I have to believe you about the Redback being a straight thru because I've hassled you about it enough :badgrin:

I just not convinced that a straight thru wouldn't give a manual the same lift in performance. I just don't understand it and I'm really frustrated you didn't get the same benefit a lot of us got.

wrexed03
08-12-2007, 02:59 PM
Might be worth trying the redback on another 380 that has had the exhaust done and vise versa. See if there is a difference. I have a feeling torque management comes into play more in the 380 manual vs auto. Just taking a guess here.
Mabey one of the Mitsu boys who works for Mitsu can shed some light on this subject or look into it.

Regards

Foozrcool
08-12-2007, 03:04 PM
Probably is torque controlled to make it smoother on the drivetrain although you would think this would only be at lower revs & on gear change. My old 3.5 Pajero (auto) was hopeless off the mark, the output was limited for smooth takeoffs. My piggyback fixed that but!

Knotched
08-12-2007, 03:11 PM
The manual has a chrome/moly crankshaft to cope with drivetrain stress.

I'm still not convinced.

Blue380 needs to voice his opinion. He definitely said he got a major gain from the muffler change.

Blue 380
08-12-2007, 05:51 PM
The manual has a chrome/moly crankshaft to cope with drivetrain stress.

I'm still not convinced.

Blue380 needs to voice his opinion. He definitely said he got a major gain from the muffler change.

As Grubco said, I got a Berklee straight thru & read somewhere else on this forum it is the same as a Lukey LR2779 but about $50 cheaper. The gain I got was remarkable right from the outset (mines manual). Particualrly mid to high range, say from 4000 - 6000, it just keeps pushing as opposed to the standard muffler which felt very restricted & ran out of puff around 5000ish. I did find since fitting the bigger intake that it seems to have lost a little down low...nothing too bad but noticable.

Regarding Knotched removing the cat, I googled "removing catalytic converter" and the following came up (no idea of the guys credentials but it confirms the the difference found between Knotched & Foozrcool's cars.....

QUOTE: Removing for Power
Date: Tue, 05 Jan 1999
From: rusmaster <rusmaster@earthlink.net>
Subject: Re: Cat Converters - Restrictions?

Hi Scott,
Removing the cat can give some top end hp, I've heard from 4-10hp
depending on other mods. What it hurts is the torque. Low end torque
needs a certain amount of backpressure to give maximum torque where the
cam comes on. To say, in the M30 stock engine, the peak torque is
204@4k RPM. Removing backpressure may decrease this somewhat. I've
never heard numbers on the decrease in torque by doing this. So, if you
want top end, then the less restriction the better, but some is needed
for maximum torque. This relates to intake systems also. Thats why
some cars like the Taurus SHO use dual intake runners for each
cylinder. This to to maximize the resonance of the intake to low and
high RPMs for the most torque and hp. I believe it's long runners for
low end, short runners for high end.

Take Care,
Russ
END QUOTE

Knotched
08-12-2007, 06:14 PM
Regarding Knotched removing the cat, I googled "removing catalytic converter" and the following came up (no idea of the guys credentials but it confirms the the difference found between Knotched & Foozrcool's cars.....



I don't believe I've lost any torque down low. I did some comparisons straight after my exhaust change and I expected more low down torque (not realising what had been released further up the rev band) but it was the same. This was on some hills on the way home from work which I drive almost every day.

But there is quite a difference between the two cars power delivery that I don't think would just be my catless system.
Foozrcool has twin mufflers so I think this setup may have an effect on the engine as well (more backpressure). Add to this that the extractors have long runners for more torque (short runners for more power higher up i.e. the standard headers) in the midrange.
So those factors together may explain the big difference.

The more I think about it the more I like the fact you can "tune" the exhaust to whatever delivery you prefer :)

Foozrcool
08-12-2007, 06:35 PM
The more I think about it the more I like the fact you can "tune" the exhaust to whatever delivery you prefer :)

Just a comment, we are all talking max horse power when in effect it is the torque that gets the work done. Yes the extractors did mainly increase the lows to mid for me which helps get the car moving & is the revs which are used most in all modes of driving.

Lets face it we don't drive around at 6000 RPM all day but it is still nice to feel that pull when reving it out. I'm thinking maybe a healthy increase in one part of the rev range may mask a smaller increase in another part (seat of the pants wise).

Back to the original comment, we need some dyno figures!

Blue 380
09-12-2007, 06:46 AM
Just a comment, we are all talking max horse power when in effect it is the torque that gets the work done. Yes the extractors did mainly increase the lows to mid for me which helps get the car moving & is the revs which are used most in all modes of driving.

Lets face it we don't drive around at 6000 RPM all day but it is still nice to feel that pull when reving it out. I'm thinking maybe a healthy increase in one part of the rev range may mask a smaller increase in another part (seat of the pants wise).

Back to the original comment, we need some dyno figures!
Certainly agree with your comments but regarding the dyno figures, arent there are a number of variables which can alter the reading? Those being temperature on the day, the calibration of the dyno, the operator etc. I've heard stories where the same car gets tested on the same dyno on the same day & comes up with fairly different readings. If this is in fact the case, even a dyno reading is not necessarily the defintive result to which car is set up the best in terms of power/torque.

Type40
09-12-2007, 06:57 AM
He definitely said he got a major gain from the muffler change.
I think we need to define what a major gain actually is. I made gains in noise but from the outset the car didnt perform any better. And now i have gone back to the factory muffler i can absolutely verify that! Also, i know for a fact that my TF manual made a huge gain from simply a muffler change and i know that this car did not respond even remotely in the same way.

I think it comes down to a couple of things...

Firstly, Torque limiting. It seems the manuals have a very "safe" calibration within the ECU to save all of the bits that might fly apart.

Secondly, The amount of cats in the standard system. I am simply not going to remove any of the cats to increase performance. They are there for the reason of meeting Euro3 and i am not going to cop a whopping great fine for tampering with my cars emission systems.

Thirdly, I may have bought a dud.

Fourthly, Refer to all of the above ^^^ lol

By the way... My 380 did a 15.49 at 92 MPH in standard form which is slower than what my TF did with the muffler change. Has anyone here actually ran their 380's either manual or auto to get a comparative time?

Foozrcool
09-12-2007, 07:10 AM
Certainly agree with your comments but regarding the dyno figures, arent there are a number of variables which can alter the reading? Those being temperature on the day, the calibration of the dyno, the operator etc. I've heard stories where the same car gets tested on the same dyno on the same day & comes up with fairly different readings. If this is in fact the case, even a dyno reading is not necessarily the defintive result to which car is set up the best in terms of power/torque.

Yep you're right there too. The only real way would have been for every mod do a before & after on the same dyno. Well I haven't had mine on the dyno so have no idea what the starting point was. At least when I do the computer I will have a before & after so will have an indication of increase from the computer itself. Regardless I am pretty happy with the performance so far.

Blue 380
09-12-2007, 08:25 AM
Yep you're right there too. The only real way would have been for every mod do a before & after on the same dyno. Well I haven't had mine on the dyno so have no idea what the starting point was. At least when I do the computer I will have a before & after so will have an indication of increase from the computer itself. Regardless I am pretty happy with the performance so far.
I think you've hit the nail on the head with your last sentence......if someone is happy with the performance of their car, thats all that really matters. Whether a dyno reading tells you its producing 100kw or 200kw's, if you get a smile on your face when you put your foot down, thats what counts!!!

Sports
09-12-2007, 08:29 AM
By the way... My 380 did a 15.49 at 92 MPH in standard form which is slower than what my TF did with the muffler change. Has anyone here actually ran their 380's either manual or auto to get a comparative time?

I think I remember wheels mag quoting the manual ES at 15.3 and the manual VRX at 15.5 or something when the cars first came out

Type40
09-12-2007, 09:12 AM
if you get a smile on your face when you put your foot down, thats what counts!!!
That hasnt happened yet... Actually come to think of it i reckon mine has the power delivery of a diesel.

Nothing... Nothing... Nothing... Its all there... Nothing... Absolutely nothing...lol


I think I remember wheels mag quoting the manual ES at 15.3 and the manual VRX at 15.5 or something when the cars first came out

You are exactly right about that... I should have taken more notice of what they said.

Sports
09-12-2007, 09:15 AM
That hasnt happened yet... Actually come to think of it i reckon mine has the power delivery of a diesel.

Nothing... Nothing... Nothing... Its all there... Nothing... Absolutely nothing...lol


Should have gotten a TL and done 14's stock :D

Then spend **** all and get 14.5's

Then add extractors and zorst and get 14.4's

Then supercharge it and get 13.5's

then blow up

get it rebuilt

get into the 12's

Type40
09-12-2007, 09:18 AM
Should have gotten a TL and done 14's stock :D

Then spend **** all and get 14.5's

Then add extractors and zorst and get 14.4's

Believe me when i say this is very much noted... You live and learn. :cry:

Sports
09-12-2007, 09:21 AM
Believe me when i say this is very much noted... You live and learn. :cry:


Yeah man I feel for ya, I hate it when crap happenes to people I know, good luck with the sale anyway and there's plenty of cars out there for you to choose from, I hear 3.5lt manual magna's are cheap these days :P

Type40
09-12-2007, 09:23 AM
Yeah man I feel for ya, I hate it when crap happenes to people I know, good luck with the sale anyway and there's plenty of cars out there for you to choose from, I hear 3.5lt manual magna's are cheap these days :P
Unfortunately so are manual 380 VRX's it seems! Everyone wants the thing for nothing... F*cking windowshoppers. :rant:

Sports
09-12-2007, 09:29 AM
Unfortunately so are manual 380 VRX's it seems! Everyone wants the thing for nothing... F*cking windowshoppers. :rant:

Tell em there dreaming

Foozrcool
09-12-2007, 10:25 AM
That hasnt happened yet... Actually come to think of it i reckon mine has the power delivery of a diesel.

Nothing... Nothing... Nothing... Its all there... Nothing... Absolutely nothing...lol


Maybe you didn't just get the 4 cylinder air intake but the whole motor!! Have you looked under the bonnett recently???

Type40
09-12-2007, 10:35 AM
Maybe you didn't just get the 4 cylinder air intake but the whole motor!! Have you looked under the bonnett recently???
Yes, yes i have! It looks purposeful enough, just doesnt perform.

Disciple
09-12-2007, 11:04 AM
Should have gotten a TL and done 14's stock :D

Then spend **** all and get 14.5's

Then add extractors and zorst and get 14.4's

Then supercharge it and get 13.5's

then blow up

get it rebuilt

get into the 12's
Or spend half the money on a proper sports car. lol You don't buy magnas or 380's with balls out performance in mind, sorry guys.

Sports
09-12-2007, 11:13 AM
Or spend half the money on a proper sports car. lol You don't buy magnas or 380's with balls out performance in mind, sorry guys.


Dude piss off, honastly, just piss off

GoTRICE
09-12-2007, 11:25 AM
Or spend half the money on a proper sports car. lol You don't buy magnas or 380's with balls out performance in mind, sorry guys.

You don't as you don't have the skill to do so.

People can and have gotten it happening for half the cost of your car. When i finish my degree ill show you. As Mat will in about a month and he's even paid for some labour

Disciple
09-12-2007, 11:28 AM
:bowrofl:. No doubt guys, no doubt. :D

Foozrcool
09-12-2007, 11:29 AM
Yes, yes i have! It looks purposeful enough, just doesnt perform.

Hmm is it really that bad?? Have you approached Mitsubishi about it?

I've had previous model Magna Sports etc & the 380 goes quite nicely compared.

Blue 380
09-12-2007, 12:20 PM
Hmm is it really that bad?? Have you approached Mitsubishi about it?

I've had previous model Magna Sports etc & the 380 goes quite nicely compared.
I'm the same....had a manual TH Sports with a straight thru muffler which was no faster than my 380 since doing the rear muffler & 90mm intake.

Black Beard
09-12-2007, 12:45 PM
Dude piss off, honastly, just piss off

2nded.

Articuno
09-12-2007, 02:23 PM
2nded.

Motion carried.

andrewd
09-12-2007, 03:12 PM
stooge should have brought my awd on 20's it was regular auto magna speed


put on 15's and when on way into trading it in up a slight incline in auto mode with aircon on and no launch (holding brake in drive) it reeled of 0-100 in 7.5 i have it on vid... lol i reckon low 15's on the 1/4 for it now, launches as hard as the s/c did till about 3500rpm lol

get a valiant ;) a nice charger for sunny days and a shopping trolley for the bad ones

ts3.0
09-12-2007, 03:32 PM
wow further proof that a certain member has major compensation issues

Knotched
09-12-2007, 03:56 PM
Before we go any further on the tired old line that the 380 will never perform, can we please wait until some of us who are happy with the output we've developed so far, get to 1/4 mile it?

After that everyone can tell us what **** boxes we've got. In the meantime please give us the benefit of the doubt.
I've been dynoing mine every second week and I know the mods improvements are not a figment of my imagination. Having posted them doesn't seem to have convinced anyone.

BloodAsp
12-12-2007, 04:00 AM
I'm loving my 380's performance, ever since i did the exhaust work I've been jonsing to get more done, only money is stopping me at the moment, and the availability of parts.

I'm a firm believer in the 380's untapped potential and the fact thats it's cheaper to wring more performance out of it than some other cars is a big plus for me you can get so much more from it for less than $300 (muffler intake and air filter) i think it's a great engine and people will realise this when mods for the car become more and more available.

as for anyone who says the 380 doesn't perform i think they need to find someone who has done the work and drive the car for themselves before they can say anything.

Grubco
12-12-2007, 04:20 PM
Yeah I agree! The 380 is fantastic for the impressive power gains available for such little financial outlay. Even owners on the tightest of budgets could afford these mods! (muffler & intake)
The power gains are definately real, and definately there. One only has to look at (or read up) the mods made by pioneering members here on this forum, who have paved the way for the rest of us.

EDIT: Just recieved my 90mm intake by courier today (well after 8pm!). I feel like a kid at Christmas!

vrx boy
14-12-2007, 05:59 PM
Intake arrived on monday, but been in melbourne 4 work and just got back 2nite so i will let you guys know how it goes after i put it in in the morning.:D :D :D

auspest
17-12-2007, 08:02 PM
Rear muffler booked in for Saturday :D
Santa commin early

auspest
22-12-2007, 09:37 AM
Rear Muffler on today.
Sounds good not loud at cruising but has a nice note under acceleration.

Tyre noise is louder anyway



Cost of $185.00

Foozrcool
22-12-2007, 07:19 PM
Rear Muffler on today.
Sounds good not loud at cruising but has a nice note under acceleration.

Tyre noise is louder anyway



Cost of $185.00

........ But most importantly does it go any better??

auspest
23-12-2007, 06:10 AM
........ But most importantly does it go any better??

Seems a little smoother with no lag through the auto. havent had a good chance to see yet but definatly can feel something.

Grubco
23-12-2007, 08:52 AM
Seems a little smoother with no lag through the auto. havent had a good chance to see yet but definatly can feel something.
You should feel some nice gains under acceleration. It doesn't feel like a lot more power, but the power is more accessible (which is what the others said).
I found Auto drives a LOT better now, and (as you pointed out) that annoying lag/gap between gears is gone. For me, Auto mode has been the biggest improvement over standard. But of course manual is good too (though beware economy if enjoy the manual too much).
Noise isn't stupid loud; you could get that if you really want it - but it is noticeable and develops a nice rumble under hard acceleration. (On the first weekend I drove past a local house rented by bunch of car hoons, and 1 guy out front gave me the full head pan as I drove past, so it is noticeable)
What muffler did you get?
(PS Any chance of putting another photo on your profile?)

auspest
23-12-2007, 01:46 PM
Went for the Megapower Sports 2 3/4. same as Shoots. It does make to auto drive better and they do have a nice note. I am living those days 25 years ago when you had to have the extractors, hotdog and 2' exhaust. I think someone has already pointed out a Kid in a lolly shop.
Wife has told me to act my age.

Need to get onto a hosting thingy for a better pic i think.

Type40
23-12-2007, 03:37 PM
Wife has told me to act my age.
Thats exactly when you shouldnt! lol


Need to get onto a hosting thingy for a better pic i think.
Try www.photobucket.com. I use them and i find it all very user friendly.

SH00T
31-12-2007, 05:29 AM
I want to ask auspest what tip you used, the original or an aftermarket?
And how is it going now?
Have you order the intake yet?, BTW its the same as they used on the TMR380.

auspest
03-01-2008, 01:37 PM
Shoot,

Just came back from camping trip to Ballina from Brisbane. I was concerned that under load the muffler would droan as i was towing a camper trailer (1.3 t). No droaning unless it kicked back on the cruise but that wasnt to bad. Fuel was in the 13's and the same as mates S commodore crewman. Speed was 110km

Tip was an aftermarket chrome
No intake as yet.
All in All the muffler is a great cheap modification

Scott

SH00T
03-01-2008, 07:51 PM
Cool.
Doin over 95 will always cost you more fuel though.
Was the crewman towing anything.
They still sound cool, don't they. Not too loud, just barky when you push it.

auspest
03-01-2008, 10:37 PM
Generally sit around 95 / 100 kph. Never been on a good trip yet so would like to see what it is like without towing. Crewman also had camper but a little lighter than mine.

They do sound good :P :badgrin:

Foozrcool
27-08-2008, 03:04 PM
Ok guys here are some pics of my dual exhaust setup & extractors.
A few people have asked about my exhaust setup so here you go I found the original pic posts.

Page 8 in this thread, post 77 & 78!!!