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best exhaust mod??
ive heard updating your exhaust with straight pipes and new headers could give up to 15-20 hp? if thats true, im deff not spending money buying these name brand exhausts that wont even do much but make it sound hot. im tryna give my 328i the most power and the best sound. and straight pipes prob the first and best mod imma put on my ride.
-first post
328xi 2011 e92
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