Quote:
Originally Posted by jopa489
Intake, exhaust, and a PBX for a few HP gain and improved throttle response. It's not a hassle, but the dollar-per-HP figure isn't great.
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ya i was thinking of a BMW performance exhaust, then a k&n CAI, and a chip. can i get all those three and then a tune by active? i heard active is tuning e90 328's.