hey i just got a new header put on (used from a wrx) and it fit fine, i guess, but when i start the car it kind of shakes and sounds like its rubbing against something. when i'm ideling it sounds fine, but when i'm on an incline with the front higher it sounds like its rubbing and each time i give it some gas it sounds like rubbing. Has anyone every heard of anything like this happening? any suggestions?
-thanks help is greatly appreciated Mike

my xx tuning header was hitting my subframe brace on my sti, it had to be trimmed. it sounded just like what you are describing.

all the gt-spec (and clones) rub.

thanks, subframe trimming might occur

yeah, thanks it did work just trimmed less than a cm off and it works fine No rubbing