Thread: E82 1M Exhaust system database
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      04-11-2014, 04:31 AM   #134
Piets94
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Drives: 94 M3, AW 1M, M2 CS
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Quote:
Originally Posted by MrRoboto View Post
Does anyone have the HMS system that can comment on performance gains etc?
I achieved ~18 rwkw gain from the HMS mids/rear exhaust combo on a stock engine.
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