i have a 2k jrsc gsr @ 8psi. it has been dynoed and tuned. i currently have kamakazie header and thermal 2.5 catback. i was curious what is the smallest size piping that you would see possible with this setup. the reason is bc i want sommething that looks and sounds stock and dont have much money at this time. i am considering the ITR catback but i wanted to get your opinons first. thanks.

 

i am running a stock car too. if anyone knows of a cat or testpipe that wont thow a CEL or sound like crap let me know.

 

I wanna know also. I plan on getting a JRSC and wanna run a ITR catback with it....

 

like you can sneak up on someone with that thing screaming like it does I know i got one for my prelude! You will loose power with the ITR catback if that matters to you.

 

thanks....

 

Your best bet is something 2.5"+...and if you do go that route, be sure to have a 2.5" collector as well as a 2.5" inlet/outlet on a high flow cat so its 2.5" throughout.

I wouldnt use an ITR catback...if you want something quiet that still performs, have some custom piping fabricated with a resonator.