I'm soon to be upgrading the exhaust system on the Ralliart and am trying to decide if it is worthwhile changing the Ralliart Headers over for Pacemakers or similar.

Are there any Ralliart owners out there that can comment on which they feel is better?

Proof in the form of dyno graphs would be fantastic if possible...

I would go with RPW racing headers if anything.... The Ralliart headers are coated stainless steel aren't they? Personally i would'nt waste the money as i think the Ralliart headers are good anyway...

But, if you wanna sell your Ralliart headers in the next 2 weeks or so i am your man!. I know someone looking for some for their VRX.

apparently the primary pipes on the pacemakers are too short, therefore don't make as much torque, i'd say they're very similar design to the pacemaker (haven't seen them myself)

I have been tracking down a set of ralliart headers for my TJ as well - will offer same price as pacemakers. ($450)

Cheers
Heath Young

I think you would be wasting your money. The Ralliart headers are very good. Autospeed did a review (I posted it in another thread somewhere) in which they said it wasnt worth spending all that money for the 1kw or so gain if any.
Pete

A couple of pics of the ralliart ones off the car wouldn't go astray :)

Cheers,

Dave

A couple of pics of the ralliart ones off the car wouldn't go astray :)

Cheers,

Dave

Yeah it'd be good to compare what they physically look like with a set of pacemakers...

kicking myself for not taking any pics of the pacemakers on my old ride before I sold it.

This is pretty hard to compare without putting both on a Ralliart and then comparing them on a dyno. All I can say is I fitted Pacemakers on my previous TH Sports, and to be honest, I was never that impressed with them. A bit more top-end, but nothing astounding to speak of.

Looking at the headers on my Ralliart, they look to be better than the Pacemakers and I remember reading that Mitsu put some considerable work into their tuned design when they were developing the Ralliart.

Personally, I very much doubt the Pacemakers would be any better, and could even be worse. Either way I wouldn't be inclined to spend the money when the Ralliart ones seem pretty much on the mark.

Maybe you could take off the Ralliart headers and spend some money on getting a full HPC coating treatment done? They'll last longer and you'll heat up the engine bay less.

Honestly dont waste your time or money swapping them over, the ralliar headers are good enough from the factory.

If you want to upgrade your exhuast just replace the rear muffler and put your money into other things (supercharger lol)

Bang for buck, Blake's on the money however you can design headers better than both the Ralliart and Pacemaker ones. Don't just think about the peak power gains. With the level of stuff the majority of us do, just a peak power gain is purely for bragging rights (i.e. e-Penis). I didn't see a peak power gain with my headers but mid range torque has been increased somwhat.

Anyone have an idea of how much Ralliart Headers would cost?
Would they bolt straight into a TH Sports, or are they a different length?
Cheers
Pete

Anyone have an idea of how much Ralliart Headers would cost?
Would they bolt straight into a TH Sports, or are they a different length?
Cheers
Pete

They should bolt up to any 3.5L without a problem. 3L might have clearance issues.

You'll probably find that, like most Ralliart gear, you'll need a VIN number to buy parts from Mitsu. I'd also expect them to be fairly expensive :(

I changed the extractors off my Ralliart to the RPW race extractors and i could certainly feel a difference.

Bit of a problem with the fit and gaskets continually cooking but after all the issues were sorted, they worked a treat.

Can recommend them over the Ralliart extractors.

Thats not to say the Ralliart extractors arent any good, they are a good piece of gear, but if you are looking for as much power as you can (like i did) than these are a good upgrade.

A 14.1 is good proof that they must work.

any ralliart parts you need genuine....give me a bell and i can organise it....POA :P
no sweat.

I think you would be wasting your money. The Ralliart headers are very good. Autospeed did a review (I posted it in another thread somewhere) in which they said it wasnt worth spending all that money for the 1kw or so gain if any.
Pete

It's not about peak electricity output, its about improving the torque curve so it's stronger and stays around longer.

Anyone have an idea of how much Ralliart Headers would cost?
Would they bolt straight into a TH Sports, or are they a different length?
Cheers
Pete

A Mitsi dealer in Adelaide quoted $1250 for the Ralliart headers. Way to dear.

YOW!!! And how much are pacemakers or RPW?

YOW!!! And how much are pacemakers or RPW?

$450 pacemakers, $650 (IIRC) RPW.

Cheers
Heath Young

Bang for buck, Blake's on the money however you can design headers better than both the Ralliart and Pacemaker ones. Don't just think about the peak power gains. With the level of stuff the majority of us do, just a peak power gain is purely for bragging rights (i.e. e-Penis). I didn't see a peak power gain with my headers but mid range torque has been increased somwhat.

These companies (Mitsu/Ralliart) have access to the $$$$$ engine simulation & analysis tools - saying that these can be bettered is certainly a matter of opinion.

Certain extractor designs have less improvement at a specific rpm but give an improvement over a wider rpm band. Some people will like the narrow but significant improvement, others will like the wide but not as significant improvement. One might work better with one car's gearing than anothers, etc etc etc.

What needs to be done is to classify what each of the extractors does in terms of significance and breadth of improvement :)

Cheers,

Dave

These companies (Mitsu/Ralliart) have access to the $$$$$ engine simulation & analysis tools - saying that these can be bettered is certainly a matter of opinion.
Well, they do have $ to R&D but they are still driven by budget and accountants. Their headers aren't crap but as Ralliart Boy can pointed out, there are gains to be made. They could have had another better design which was shelved just like what happened with the cam design.


Certain extractor designs have less improvement at a specific rpm but give an improvement over a wider rpm band. Some people will like the narrow but significant improvement, others will like the wide but not as significant improvement. One might work better with one car's gearing than anothers, etc etc etc.

What needs to be done is to classify what each of the extractors does in terms of significance and breadth of improvement :)
And that's what I've tried to highlight in all my posts about header differences.

Well, they do have $ to R&D but they are still driven by budget and accountants. Their headers aren't crap but as Ralliart Boy can pointed out, there are gains to be made. They could have had another better design which was shelved just like what happened with the cam design.

They were driven by budget, but not so much as a full factory run. Emissions, noise, power characteristics that their target market are after are all factors Mitsu/Ralliart had to consider.

I'm just saying that it's a tough call to say with such confidence that they can be bettered (not trying to argue for the sake of arguing, though it might appear that way :P)

Cheers,

Dave

I'm just saying that it's a tough call to say with such confidence that they can be bettered (not trying to argue for the sake of arguing, though it might appear that way :P)


Not really. Chances are Mitsubishi drew a graph with performance on one axis and cost (aka simplicity to mass produce) on the other axis and picked a point somewhere along the curve that made everyone happy. Probably somewhere near where the performance benefits started flatten out but price was still realistic.

You could almost guarantee that someone with enough time and money to spend could make something better. Sure, they might only gain 10% more, but hey.

The Ralliart Magna uses heat-coated tubular extractors that will happily bolt to the heads of any TE-TJ Magna V6. On the other hand, Rod tells us the standard cast iron exhaust manifolds flow very well - the Ralliart extractors "are worth only a couple of kilowatts here or there".

hahahaa - just reading some old Autospeed articles and found the above gem of a quote.

Those that have seen the "rusty" exhaust manifolds on a normal magna will disagree, I certainly did after replacing them with Pacemakers on my old TJ Exec - what a difference they made!