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since were on this topic, im looking for an aftermarket exhaust as well....will they fit on a stock e92 bumper, if I wanted to put a cf diffuser on it (dual exhaust). Also what are the hp/tq gains from AE and Vanguard...both sounds good to me...just looking for performance gains to sway my decision.
Sorry to jack the thread, but im sure it would be some good info for those who are in the same boat...thanks
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