Quote:
Originally Posted by Suhb
3 stage intake made a bigger difference in power for me day to day. The AA headers felt really strong on mountain runs where the car remained above 4k. Yes, it will be super loud. For me, interior trim that didn't make noise before started to rattle from the drone of headers + PE exhaust. I eventually put on a 135i exhaust to quiet it back down which removed almost all the drone and actually made it a little less stinky at stoplights.
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Im looking into AA headers but im worried about the smell and how loud it'll but. Did you just put in an oem 135 axle back?