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      05-26-2010, 12:43 PM   #295
BGM
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Drives: F21 118d M Sport
Join Date: Oct 2009
Location: Farnborough, UK

Posts: 2,364
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Quote:
Originally Posted by saferisk View Post
The most intresting thing I learnt though is that the M3 muffler does just exactly that but more so that even the stock 335i muffler! I only rev'd it a few time standing still but I think either it hasn't changed much or has become quieter, which I dont really mind so long as it doesn't impact the performance. I've requested that the workshop do a dyno with and without the M3 Muffler to see how detrimental it is to performance! D
the exhaust system is very restrictive on the m3, it will make a difference
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