i was thinking about getting new headers, an exhaust, and cat. can anyone recommend a good header thru exhaust setup? also, will an itr exhaust fit on my 01 gsr?

 

well depends on what u want to do to the car in the future

turbo---leave it as it is and wait

minor mods---dc 4-2-1, carsound cat, a nice greddy cat back or something (2.25 inch)

major N/A mods (cams, pnp, etc)---4-1 header of some kind, hi flow cat and greddy exaust(2.5 inch maybe)