Looking for some performance increases for my ralliart ...
would getting a high flow caT
cat back exhaust
and later on extractors help performance in any real way????

Ralliart has HM Headers (extractors) from Factory, and these are very good so leave them alone.

High Flow cat will help a little, then decent performance resonator (big as possible in body size) good 2 1/2" piping is fine, finished with a good performance muffler.


Ballistic cats very good product, mufflers most people recommend lukey's and magnaflow, possibly redback as well.

Probably not a huge gain compared to factory ralliart though.

I went through this with my ralliart and only real gain you can do is High flow cat and even that is less then impressive, just frees up the power a little. If you want more sound all you have to do is change the rear muffler to something smaller, that's about it.

If you want any impressive difference you really need to look at expensive engine mods (e.g. cams and headwork) Or a new engine all together.

You can also get your car tuned which can gain 5-8kw from the factory ralliart tune with stock parts.

sweet thanx man

hi flow cat.. i rember reading a blog from the rallyart dev that they even tryed just strait pipe and didnt get much of a gain

Ralliart models already had upgraded extractors and exhaust. Very little gains to be had. Better off putting your money elsewhere if you want performance gains.

red valdez...suggestions>????