so do you need to take out your cat for this to work? my friend told me you did and it dosn't make any sence that a US CO. would produce something illegal for US residents to use?
should I stop worrying about this and look at other headers?
I dunno I'm confused?

 

Yes, you will need to remove your stock cat, but you can still be legal if you purchase an aftermarket cat such as Random or Carsound.
Otherwise, a testpipe is a popular alternative (and cheaper, too)

You're going to see the best gains from a 'JDM' sized header. This means a 2.5" collector. With any JDM header you will need to ditch the stock cat.
But JDM size isn't by any means the only possibility. I had a Comptech 4-2-1 header that bolts right up to the stock cat, and on a stock ITR, it did pretty well vs. the "JDM" competition.


[Modified by sackdz, 3:25 PM 4/24/2002]

 

cool thanks
what about Toda?
do you need to do the same for it too?

 

You either have to buy a cat with a 2.5 outlet (carsound cat from SMS) or get a testpipe with a 2.5 outlet. The DC JDM header is technically only for "offroad use" but inspectors or the law will probably not notice. By the way did you know that starting May 1st in DFW counties there is a new emission test coming that will cost a boat load more and is much stricter. If I was you I would get my car inspected before I put the JDM header on.

 

You need to do that with ALL JDM headers with a 2.5 collector.

 

yeah I know thats why I am doing the questions b4 I buy (DFW emissions)
DAMN IT now I probably cant get what I want

 

Sure you can. Just buy the ITR JDM 4-1 header and buy the carsound cat. If you want it to look stealth buy the heat shield and you have nothing to worry about.