Quote:
Originally Posted by BMWfan07
Does anyone know if there are any proven dyno gains from going with the Performance Exhaust? I looked around for info and found none. Usually when you upgrade the exhaust on a car there is some kind of performance gain, just wondering if that is the case here.
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The gain is not much if any but you do get a nice exhaust sound. On the BMW website it mentions 5hp/3tq on selected models.
The real gains will come as you mod the engine as the exhaust is more free flowing. IMHO...