As you can see im my sig, I have all listed installed, except for a TS ECU flash. With my test pipes, ypipe and Fuji exhuast, I got alot of rasp from 2k-4 1/2k in the power bound...I wanted to know what others have done to get rid of it, plus it makes the Fuji exhaust sound loud as hell. Is it my Ypipe that is getting raspy like that? or the test pipes...please give me your feed back..

 

Mostly likely all of that rasp is comming from the testpipes. Cat's really quiet down a car'sexhaust, especially when you have 4!

Adam

 

yeah def the test pipe, just get high-flow cats (crawford cats i prefer), and most of the rasp will be gone. I have fuji exhaust and y-pipe w/ stock cats and i have a lil rasp, less than the stock ones had.

 

I had the rasp with the R/T cats, so I ditched them and got the Crawfords. Rasp Gone!

 

i'm surprised you had any at all with FI...