Thread: FI Catback - Vibrating Noise on Cold Start
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      01-23-2024, 09:07 AM   #3
Pilatus
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Drives: M5 C F90/M3 C F80/C5 TwinTurbo
Join Date: May 2023
Location: Tampa, FL

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Check the the exhaust flaps, they are known to vibrate and rattle at startup
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