I just installed a Mugen header on my ITR and I could not use the CARSOUND cat with it. Had to go back with stock cat. What cat do I have to get with this setup?

 

Is that a USDM or JDM header?? (i.e. 2.25 vs 2.5" collector?)

 

Ummmm....if the stock cat fit on your Mugen header, it looks like you were sent the US market header with the smaller collector, I'd be if I were you.

 

King Motorsports will send you the USDM modified header unless you specify otherwise. Thus it should bolt up to a stock catalytic.

If the Carsound cat is a 2.5" - you should have told whomever you ordered the header from that you intended to use a non-stock/high flow cat. It's not their fault!

 

I guess it is my FU@%$ UP.

 

Any noticible difference once you put the header on even though it was the USDM one?

 

Well since your stuck with it, try a Random Tech cat. It will work with your headers.

 

Cat Testpipe

 

i agree... i'm about to put test pipe in mine, that and headers... already have intake/exhaust
going for subtle... till i get my t-59 turbo *heh* *heh* *heh*


[Modified by gan ni nia, 8:19 PM 8/1/2001]

 

I recently got the USDM Mugen header and was pleasantly surprised with the power gains. Def seems to have more power above 6500 or so, and of course the weight savings. I didnt want to replace the factory cat, and I dont plan on ever having more than I/H/E, so the USDM was the way to go for me. (Plus I got the header used at good price!)

 

Testpipes rule!


[Modified by MPH, 10:04 AM 8/2/2001]