i am thinking of picking up an sti, but would like to do the typical turbo things, like exhaust, downpipe, intake, would this void a warranty on a sti? are the tampa area subaru dealers mod friendly? The supra was long out of warranty when i bought it and i know on most na cars this is not a problem but with turbo cars these things sometimes raise boost more then stock levels so i am not sure what is allowed and what isnt, maybe like just intake and exhaust but no downpipe? any help would be appreciated