bbarbulo

iTrader: (2)

you have a B16, correct? USDM should flow plenty better cuz it's designed for greater exhaust volume, but that's assuming you can get one cheap... if about the same price, I'd get the JDM peice cuz it's quite sought after and will surely retain resale value in the long run.

imported_sketch

is the ITR USDM header SS?

ryuujin

I don't think any OEM header is SS. But don't count me on that

Just make sure you have a 2.5" collector, so you get the best possible flow Provided you're going NA that is

imported_sketch

so the collector from a Stock SiR cat won't do ? when you say the collector... do you mean juse the flange?

sorry if these questions sound stupid, but I'm just trying to get the most without wasting money on usless mods.

ryuujin

not the flange It's the opening at the very end of the piping. Like when you look down the end of the header where it connects to the cat, the inner diameter should be 2.5"

you could use a stock SiR cat, however you will need a flange that will mate up to the 2.5", but that would cause a small bottleneck. I don't know for sure how much of a difference that would actually make, but ideally, 2.5" all the way from the header to the cat to the b-pipe to the inlet at the exhaust would be best

ryuujin

Let me correct myself, the ITR header is stainless steel. However it's not polished to the point where it's shiney and stuff

Sorry bout the misinformation for me

imported_sketch

no prob, is it possible to get an ITR header polished if I get the header for $150 ?

what if I go ITR header back ... good gain there?

ryuujin

You could get it aftermarket polished yes Or even chrome plated if that's your thing Which I doubt since you're just asking for polishing

ITR header back? Umm, I think it would be nice, if you're on a budget, obviously if you can get something even more free flowing it would be better

imported_sketch

yeah budget is the key here..... how much do you think it would cost to take it in to get polished ?

ryuujin

not a clue, probably best to ask this question on the TCC Discussion, since this be the performance section