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10-19-2020, 09:00 PM
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#43
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///M Powered for Life
Drives: E90M/E92M/M4GTS/M4GT4/M6/X5M
Join Date: Sep 2010
Location: Greenwich, CT
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Update: we put the Bimmerworld street muffler on a Alpine car with the Bimmerworld xpipe with HFCs which has had this issue for a long time.
There is zero difference with the Bimmerworld muffler vs before with the OEM '2 pipe method' exhaust.
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