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      11-27-2020, 04:49 PM   #1175
M140_BCS
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Drives: 440i Gran Coupe
Join Date: Dec 2019
Location: UK

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Quote:
Originally Posted by jackstrath View Post
Rattly exhaust flaps? Anyone fixed this issue by installing a new "bow" like how youd fix the issue on a stock exhaust?
Cold start delete stopped the rattle I had from the MPPSK exhaust valves on start up. Also have a vibration / rattle noise in comfort when accelerating. Definitely no contact with the heat shields or brace so decided to put the standard exhaust back on.
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2017 440i F36 - Drexler LSD - B58TU HPFP - MHD Stage 2 - xHP - 200 Cell DP - MPE
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