When I got my STi in 04 I asked my dealer the same thing. They told me a Cat-back and intake would not hurt any thing. But each dealer is different.I see everyone, or most everyone doing all these mods on these new cars. I want to buy the borla catback but am afraid it's going to void the new car warranty. Anyone know if buying just a catback will void any aspect of the warranty ??? Thanks!
Any pics/vids of this on a car? I would like to see how it sits.Invidia has a catback that is better priced then the borla, you might want to check that out. I think that it is better because it has less bends then the borla one.