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      05-18-2019, 10:34 AM   #10
Dasd329
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Drives: M4 F82
Join Date: Mar 2019
Location: LA / Santa Clarita

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Did you turn cold start off with a tune? My AA mid and MPE exhaust back do the same thing even way worse when the car starts up with cold started turned off via tune. Once you drive around a bit and things get warmed up it goes away so hard to think itís actually something loose.