NO im not going to belt the living daylights out of my catalytic Converter
but my mate already has.

To his brand new SS ute. WHO DOES THAT?

ive looked around on the internet for RESULTS, DAMAGE, wear and tear, emmisions
and i havent found much

the sound of his car is so amazingly NICE and he was very close to conning me into it(seeing i didnt know what he had in there) i had to change my pants several times due to such a SEXY zorst note
but when he told me his awsome modification by taking a crowbar to his cat,
i was very close to kicking every panel in on his car.

he doesnt beleive me that it is BAD.
but from what i herd IT WAS A BIG NO NO.

any 1 wanna fill me in.

and while your at it.
does some 1 wanna help me out with metal and high flow cat prices. I WANNA DO IT THE RIGHT WAY.

CHEERZ
mateys

Dude are you on Speed or Ice or something? What the hell are you even asking? Post the first half of this crap in Members Lounge (Or better yet, not at all) and the last part where I think you're asking for advice on what cat to use, clarify it some more. God dammit.

What did he do to his cat exactly, hollow it out? Illegal if so...

It doesn't affect the car in a bad way, just polutes the air more lol. $10,000 fine if he get's caught.

A good quality high flow cat will set you back about $300-350 installed. Well worth it IMO.


Dude are you on Speed or Ice or something? What the hell are you even asking? Post the first half of this crap in Members Lounge (Or better yet, not at all) and the last part where I think you're asking for advice on what cat to use, clarify it some more. God dammit.

What did he do to his cat exactly, hollow it out? Illegal if so...
Wasn't that hard to understand :confused:. His mate hollowed out his cat, and binzer is asking if it's bad and also what cat he should look at getting + price.

If all he wanted was a noise, he could of just taken off the centre muffler and run a straight pipe through instead. What a dick for smashing it... than again alot of country folk drive around without headers/extractors lol jokes

I'd say $300-400 for a high flow cat supplied and welded. I had it done to my car but i can't remember the exact pricing as I had some other stuff done at the same time.

Dude are you on Speed or Ice or something? What the hell are you even asking? Post the first half of this crap in Members Lounge (Or better yet, not at all) and the last part where I think you're asking for advice on what cat to use, clarify it some more. God dammit.

What did he do to his cat exactly, hollow it out? Illegal if so...

yeah mate im hittin the lewy. at work (hmmm sure that would go great while im next to my boss at work)

and no he didnt hollow it out. he remvoed it. put it on the ground and smashed it several violent times till he broke down the rock **** inside it)



It doesn't affect the car in a bad way, just polutes the air more lol. $10,000 fine if he get's caught.

A good quality high flow cat will set you back about $300-350 installed. Well worth it IMO.


ok well thanks for the highflow cat info. it seems really appealing to get one after hearing his rig

Dude are you on Speed or Ice or something? What the hell are you even asking? Post the first half of this crap in Members Lounge (Or better yet, not at all) and the last part where I think you're asking for advice on what cat to use, clarify it some more. God dammit.

What did he do to his cat exactly, hollow it out? Illegal if so...

yeah mate im hittin the lewy:doubt: :doubt: . at work (hmmm sure that would go great while im right next to my boss)

and no he didnt hollow it out. he remvoed it. put it on the ground and smashed it several violent times till he broke down the rock **** inside it)



It doesn't affect the car in a bad way, just polutes the air more lol. $10,000 fine if he get's caught.

A good quality high flow cat will set you back about $300-350 installed. Well worth it IMO.


ok well thanks for the highflow cat info. it seems really appealing to get one after hearing his rig

are high flow or metal cat the same same thing

If all he wanted was a noise, he could of just taken off the centre muffler and run a straight pipe through instead. What a dick for smashing it... than again alot of country folk drive around without headers/extractors lol jokes

I'd say $300-400 for a high flow cat supplied and welded. I had it done to my car but i can't remember the exact pricing as I had some other stuff done at the same time.

yeah i think he wanted the "oi people in the next town can hear me" noise
its really loud. Definatly illegal. and it doesnt sound like any other V8

e.g bosses xr8 magnet, purrs like a cat

is it possible for me to do a straight through muffler. or has ashneel already done that.

ok well thanks for the highflow cat info. it seems really appealing to get one after hearing his rig

are high flow or metal cat the same same thing
Metalcat is a brand of high flow cat, they will be fine (200CFM would be good).

And yes you have dual high flow mufflers installed.

Metalcat is a brand of high flow cat, they will be fine (200CFM would be good).

And yes you have dual high flow mufflers installed.


oh awsome... sorry to be an asolute pain in the rectum every 1 but.
what exatly does straight through mean?
no baffles? silencers?

this thread hurts my head.

a punched out cat can have a slight negative effect on performance (as well as the back pocket if caught). it causes more turbulence in the exhaust.

also does it make it that much louder on a NA? on turbo cars it doesn't do squat.

and a straight through muffler is 1 that is straight. most mufflers will have a slight bend in them, for example they will enter the muffler off centre and exit in the centre, or they will do a full S bend in the muffler.

then there is also different ways that the holes are done inside them.

can i get your mates rego???

then he will find out how bad it is.

LOL @ Lucifer :bowrofl:

this thread hurts my head.

a punched out cat can have a slight negative effect on performance (as well as the back pocket if caught). it causes more turbulence in the exhaust.

also does it make it that much louder on a NA? on turbo cars it doesn't do squat.

yes apparently also a slight negative effect on fuel economy.
what stops these things from getting clogged up with all the exhaust crap passing through

and a straight through muffler is 1 that is straight. most mufflers will have a slight bend in them, for example they will enter the muffler off centre and exit in the centre, or they will do a full S bend in the muffler.

then there is also different ways that the holes are done inside them.


so its literealy impossble for me to have a straight through muffler lol.. its all good
i think ill stick to getting the highflow = extractors

MAN i need to study up on my stuff.

OH and lucifer. CHill out mang.
there is nothing SPEEDY about this thread, is there?

all the crap that goes through the cat is generally minute particles, and the holes in the cat aren't that small. yes they are small, but it would have to be a bit hunk of crap, like part of a piston, lol, to get stuck.

but they do clog up eventually.

all the crap that goes through the cat is generally minute particles, and the holes in the cat aren't that small. yes they are small, but it would have to be a bit hunk of crap, like part of a piston, lol, to get stuck.

but they do clog up eventually.


also.
EXHAUST GASKETS? is there such thing.
my zorst is starting to get a drumming sound comming from under neath in the middle its were the zorst joins are. ive tightened the U bolts as much as possible and it doesnt seem to go away. a little birdy told me the gaskets in the exhaust may have gone and i dont think its causing just a drumming noise ..........loosing backpressure to. i think :)

so its literealy impossble for me to have a straight through muffler lol.. its all good
i think ill stick to getting the highflow = extractors

MAN i need to study up on my stuff.

OH and lucifer. CHill out mang.
there is nothing SPEEDY about this thread, is there?
There needs to be some sort of bend to reduce noise, otherwise you might as well have no muffler at all, but a straight through generally doesn't change direction, but will still bend slightly to the side.

so its litterealy impossble for me to have a straight through muffler
i just re-read the start of this thread, were u originally asking what they meant by straight piping? if you were that is just where you cut the muffler off and weld in a bit of piping the same length as what you cut out (the muffler) and the same diameter as the rest of the piping.

but the 2.5" redback systems for magnas come out with a straight through muffer in the middle. i cut that out on my last magna. made it sound better, and not loud either. i had a lukey rear muffler that was off centre/centre.

i just re-read the start of this thread, were u originally asking what they meant by straight piping? if you were that is just where you cut the muffler off and weld in a bit of piping the same length as what you cut out (the muffler) and the same diameter as the rest of the piping.

but the 2.5" redback systems for magnas come out with a straight through muffer in the middle. i cut that out on my last magna. made it sound better, and not loud either. i had a lukey rear muffler that was off centre/centre.

like canceling out the silencers in the mufflers. making it a straight through exhaust?
sorry mate. fruit loop when it comes to cars. only been around them for 3 months

also.
EXHAUST GASKETS? is there such thing.
my zorst is starting to get a drumming sound comming from under neath in the middle its were the zorst joins are. ive tightened the U bolts as much as possible and it doesnt seem to go away. a little birdy told me the gaskets in the exhaust may have gone
if it has U bolts clamping a muffler onto piping then there is no gasket. there is only a gasket where 2 flanges meet.

check to make sure that the exhaust isn't hitting the body at all. if the gasket is gone then it should sound like an exhaust leak if you stick your head under the car when it is running

if it has U bolts clamping a muffler onto piping then there is no gasket. there is only a gasket where 2 flanges meet.

check to make sure that the exhaust isn't hitting the body at all. if the gasket is gone then it should sound like an exhaust leak if you stick your head under the car when it is running

i cant fit my head under my car. its not hitting the body. and it does have an exhaust leak sound. fart noizes lol

like canceling out the silencers in the mufflers. making it a straight through exhaust?
sorry mate. fruit loop when it comes to cars. only been around them for 3 months
yes, you would be actually removing the muffler, cutting the pipe both before and after the muffler, taking the muffler and dropping it in the bin, then welding a piece of exhaust pipe in the gap where the muffler was.

and if you hear a soft farting sound then yes, the gasket is going.

yes, you would be actually removing the muffler, cutting the pipe both before and after the muffler, taking the muffler and dropping it in the bin, then welding a piece of exhaust pipe in the gap where the muffler was.

and if you hear a soft farting sound then yes, the gasket is going.


ok Great!!!!
my work is finished. gotta boot people before they lock me in the office

thanks TONNES for you help. ill be checking this thread in the morning to read all your helpfull abuse,notes, and tips.

cheeerssssssssssss

I'd be really suprised if by hollowing out the cat there was a loss of power. I would consider it just for the gain in power. Also, when I got my exhaust done on my old car they said that cats usually stop being effective after 100,000km.

No cats or gutted cats certainly do reap a nicer exhaust note. The next step is getting rid of EFI and whacking on a carbie, then you will have a real nice note!

I wish I had the guts to do it to my V8!

Oops luckily I read that post twice, I thought it said reaps a 'ricer' exhaust note, which I wouldnt like. What sound difference is it, a deeper burble, a bit like putting a traight through exhaust on ???

Ollie

Oops luckily I read that post twice, I thought it said reaps a 'ricer' exhaust note, which I wouldnt like. What sound difference is it, a deeper burble, a bit like putting a traight through exhaust on ???

Ollie

It seems to get rid of that monotone note that modern cars have at low revs.

just for the record if he's running a twin cat system then the standard cats will support 250rwkw
if it's a single then that will support 200rwkw
if it's an LS1 and you think it sounds nuts then either he's had a lot more work done than just a hollowed cat or you have no idea what a good motor sounds like
if it's a 5L then they can't help but sound good

also if it's simply hollowed out then it will sound tinny as almighty
if he's put a pipe through it then it'll still sound deep and crisp and have gained about 5rwkw

NO im not going to belt the living daylights out of my catalytic Converter
but my mate already has.

To his brand new SS ute. WHO DOES THAT?

ive looked around on the internet for RESULTS, DAMAGE, wear and tear, emmisions
and i havent found much

the sound of his car is so amazingly NICE and he was very close to conning me into it(seeing i didnt know what he had in there) i had to change my pants several times due to such a SEXY zorst note
but when he told me his awsome modification by taking a crowbar to his cat,
i was very close to kicking every panel in on his car.

he doesnt beleive me that it is BAD.
but from what i herd IT WAS A BIG NO NO.

any 1 wanna fill me in.

and while your at it.
does some 1 wanna help me out with metal and high flow cat prices. I WANNA DO IT THE RIGHT WAY.

CHEERZ
mateys
hey there,
first of i didnt get a chance to reply straight away cause i was waiting for admin to activate my account and than all off a sudden theres a million posts =P lol
and i havent read ALL the post so dnt bite my head for repeating sumthing

anyways
i used to work at an exhaust shop and let me tell you that CAT BASHERS is a big :naughty: :naughty: :naughty:
not only do you pollute the s**t out of the air and make life even harder for people with asthma =P but the fines a ginormous
i recall a customer walking into the shop and asking my boss to do such a task on his vehicle and he simply replied that itll cost the guy $25g to do it. off course the bloke went bursurk and said that was stupid but simply put my ex employer said that would be wat it would cost to cover all the fines not only HE would cop as the employer but the employees would cop for performing the task not to mention he could be facing sum serious crimes all in all it might even cost them there mechanics licence and being a registered MTA aproved repairer thats BIG
in fact i think the fines from memory go all the way up into the hundreds of thousands and there was a possiblity of a jail term ( correct me if im mistaken)

as it was previously mentioned its alot cheaper when you think to just buy a high flow cat
it works the same
saves you money
looks nicer
and doesnt kill little orphan kids lungs
:D

my 2c

hey there,
first of i didnt get a chance to reply straight away cause i was waiting for admin to activate my account and than all off a sudden theres a million posts =P lol
and i havent read ALL the post so dnt bite my head for repeating sumthing

anyways
i used to work at an exhaust shop and let me tell you that CAT BASHERS is a big :naughty: :naughty: :naughty:
not only do you pollute the s**t out of the air and make life even harder for people with asthma =P but the fines a ginormous
i recall a customer walking into the shop and asking my boss to do such a task on his vehicle and he simply replied that itll cost the guy $25g to do it. off course the bloke went bursurk and said that was stupid but simply put my ex employer said that would be wat it would cost to cover all the fines not only HE would cop as the employer but the employees would cop for performing the task not to mention he could be facing sum serious crimes all in all it might even cost them there mechanics licence and being a registered MTA aproved repairer thats BIG
in fact i think the fines from memory go all the way up into the hundreds of thousands and there was a possiblity of a jail term ( correct me if im mistaken)

as it was previously mentioned its alot cheaper when you think to just buy a high flow cat
it works the same
saves you money
looks nicer
and doesnt kill little orphan kids lungs
:D

my 2c


AHHHHHHH. THANKS, but ill think ill take the right road.
but!
ill let you all know when this guy in the SS ute gets done.
hehehe
seeing exhausts are your feild, what can you suggest for the best of the best sound?
right now my car has a terrible drone and i only noticed actully how **** it was while driving back from melbourne?


edit: Also POST A NEW THREAD, introducing yourself with PLENTY OF PICS OF YOUR CAR
(it sounds quite crazy by the looks of your profile)

AHHHHHHH. THANKS, but ill think ill take the right road.
but!
ill let you all know when this guy in the SS ute gets done.
hehehe
seeing exhausts are your feild, what can you suggest for the best of the best sound?
right now my car has a terrible drone and i only noticed actully how **** it was while driving back from melbourne?


edit: Also POST A NEW THREAD, introducing yourself with PLENTY OF PICS OF YOUR CAR
(it sounds quite crazy by the looks of your profile)
lol yeh let us no please lol
well depending on what your car is 1st gen 2nd gen or 3rd gen its up to personal preferance
me i like loud and deep so i went all out custom and got a cupla mufflers imported from italy and set my self up witha 2.5" dual system all mandrel bent from cat back. theres no mufflers bar the to at the end and the cat
and its peaking at 115db :badgrin: its a smooth sound too and sounds wicked wen you plant it or drop it a gear
power wise ive yet to dyno but iit gave me considerate power top end and mid range not much bottom torque though feels alot better
but again EVERY car is different you may have a 3rd gen like me but mines auto :( and a Xi at that so power to weight is different to say a manual vrx and you will get a different result on differnt cars with the same exhaust. might not be great deal difference and it might not neccasarily be bad difference but its a difference none the less
your best bet is to go to your local exhaust shop ( a gud one. do soime research dnt just goto any bobs garage because there are alot of butchers out there that couldnt give a rats ass how your car sounds) and ask them to try differnt mufflers on your car and what you want to achieve and if its FEASABLE. cause it might look good but can it work for your desires

gotta love the school holidays....... LOL

lol yeh let us no please lol
well depending on what your car is 1st gen 2nd gen or 3rd gen its up to personal preferance
me i like loud and deep so i went all out custom and got a cupla mufflers imported from italy and set my self up witha 2.5" dual system all mandrel bent from cat back. theres no mufflers bar the to at the end and the cat
and its peaking at 115db :badgrin: its a smooth sound too and sounds wicked wen you plant it or drop it a gear
power wise ive yet to dyno but iit gave me considerate power top end and mid range not much bottom torque though feels alot better
but again EVERY car is different you may have a 3rd gen like me but mines auto :( and a Xi at that so power to weight is different to say a manual vrx and you will get a different result on differnt cars with the same exhaust. might not be great deal difference and it might not neccasarily be bad difference but its a difference none the less
your best bet is to go to your local exhaust shop ( a gud one. do soime research dnt just goto any bobs garage because there are alot of butchers out there that couldnt give a rats ass how your car sounds) and ask them to try differnt mufflers on your car and what you want to achieve and if its FEASABLE. cause it might look good but can it work for your desires

We are on the same boat buddy.
Automatic
3rd gen 99 Th exec
dual exhaust system 2.5" splits into 2" into two SRT mufflers (eventualy want straight throughs)

but i have a feeling the gaskets or a seal is broken. (droning in cetre of the car)
causing either loss of backpressure. and reducing the V6 sound

after the same deal.
Deep, loud, grunt, and mostly the BARK up effect.
the note on my car is really monotone. (a few pages back i posted a recording)
and it doesnt sound like a have Quads on there. sounds like no better than my m8s huyundia exel with a Boomin cannon lol



gotta love the school holidays....... LOL

HAHAHAH OMG MAN GREAT CALL, that was SO NESSICARY,

directed straight at 2 people that dont go to school

HAHAHAH OMG MAN GREAT CALL that was SO NESSICARY,
for 2 people that dont go to school :s
yeah i know, but it just sounds like the sort of conversation that school kids have.

yeah i know, but it just sounds like the sort of conversation that school kids have.

im telling you now a schoool kids conversation would be alot more sohpisticated than mine.
YEAR 10 DROP out. BOOHYA lol

it's hard to tell these days with not many people having a decent grasp of the english language, or at least the spelling side of it.

it's hard to tell these days with not many people having a decent grasp of the english language, or at least the spelling side of it.

yeah but notice how the person your directing it to understands.
because they have been in the conversation and are thinking on the same level

window lickers lol

i dunno. and yes i have shockin vocab. but oh well i dont need it for my job

and when it comes down to the crunch. for writting reports and species
MICROSOFT WORD SYNONYMS, HAHAHAHA

Binzer your mufflers are straight through :confused:

Binzer your mufflers are straight through :confused:

STOP MAKING ME SOUND DUMB. :tantrum: :bowrofl:

whats the point of having mufflers (those big oval shaped things that the Tips come out of) then if the custom exaust is straight through

i got a magnaflow hi flow cat for 200$ from a small exhaust shop and then got it fitted for like 40$ from my usual exhaust shop.

Not expensive at all and i think it'd help and the stock 2nd gen cat goes down to 2"... retune this week woot.

gotta love the school holidays....... LOL
mate im at work stop spamming lol

im telling you now a schoool kids conversation would be alot more sohpisticated than mine.
YEAR 10 DROP out. BOOHYA lol

year 9 drop out here :D

STOP MAKING ME SOUND DUMB. :tantrum: :bowrofl:

whats the point of having mufflers (those big oval shaped things that the Tips come out of) then if the custom exaust is straight through
Because there are baffles in the muffler that surround the pipe. You wont get any gains from replacing the mufflers with just a pipe, and will be very loud, highly illegal, and you complain about drone now? It'll be 10x worse i guarrentee you.

year 9 drop out here :D
year 11 here:D hahaa
mad082 magna:
nah serious man he asked for advice and i gave it to him sorry my knowledge didnt apeal to you next time ill talk in jargon so that i sound more sophisticated for ya ;)
and this is internet man no one uses correct vocabulary or typing grammar
what for?
your here to get your message out not punctuate it
so for the record
tke it ez braz ;)

Because there are baffles in the muffler that surround the pipe. You wont get any gains from replacing the mufflers with just a pipe, and will be very loud, highly illegal, and you complain about drone now? It'll be 10x worse i guarrentee you.
he is right theres a reason for the baffles and pipe is just for Noise not performance
if your going to do your exhaust you best do it right from the start itll create less issues later
this might sound extreme but when you have a VERY loud exhaust theres a lot of vibration and parts MAY just start cuming loose and youll have all sorts off noises and problems

Because there are baffles in the muffler that surround the pipe. You wont get any gains from replacing the mufflers with just a pipe, and will be very loud, highly illegal, and you complain about drone now? It'll be 10x worse i guarrentee you.

AHHH i see.. well thats what i thought STRAIGHT THROUGH MEANT

the local zaust man here sells inserts for 70 bucks, anyways. thanks for clearing that up for me.
(after explaining it in 6 ways) lol

year 9 drop out here :D
AMEN bruther! SCHOOLs FOR ...WAn.k..e........no wait.......SMART PEOPLE!!!

im glad i got out early. i have mates that are older than me, finished year 12, got a job, yet im earning double what they are. lol

yeah if you remove your mufflers for straight through pipe your car will make an awful farting noise.

Trust me, the guys used to make fun of my verada when i had no resonator and they used to call it the "whipper snipper" lol

binzer, most of the drone is due to the fact it is an auto and the dual setup will just make it drone louder. Either fit another resonator, remove the dual setup, get some extractors and high flow cat, or do a manual conversion.

When I got my extractors and a high flow cat it stopped alot of the drone.

AMEN bruther! SCHOOLs FOR ...WAn.k..e........no wait.......SMART PEOPLE!!!

im glad i got out early. i have mates that are older than me, finished year 12, got a job, yet im earning double what they are. lol

bet you're working "physically" harder too
i know i do

i cut out the centre muffler in my old system and it sounded good. i had a single 2.5" system and a lukey rear muffler.

bet you're working "physically" harder too
i know i do

OH MATE 10 TIMES HARDER lol pffffft

i press CTRL and draw with an electric pen on a drawing tablet. ALL DAY
and play around on AMC

yeah if you remove your mufflers for straight through pipe your car will make an awful farting noise.

Trust me, the guys used to make fun of my verada when i had no resonator and they used to call it the "whipper snipper" lol

binzer, most of the drone is due to the fact it is an auto and the dual setup will just make it drone louder. Either fit another resonator, remove the dual setup, get some extractors and high flow cat, or do a manual conversion.

When I got my extractors and a high flow cat it stopped alot of the drone.

you think thats bad.
i get called the FARTING WHALE

thanks for the words of wisdom man.
i think ill loose the Quads eventually and fit 2 fat rhombus 1ns or something

you think thats bad.
i get called the FARTING WHALE

thanks for the words of wisdom man.
i think ill loose the Quads eventually and fit 2 fat rhombus 1ns or something

get some better quality mufflers... they like the engine theyre fitted for are one of the most important determining factors on how itll sound.