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      05-16-2019, 01:13 PM   #3
Bloodykotex
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Drives: BMW M3 F80 ZCP
Join Date: Mar 2019
Location: So. Cali

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Do you have any exhaust mods ? Do it happen while stationary in neutral ? Or does it have to be under engine load ? Easiest way i guess is to have the vehicle in the air and trying to duplicate the noise while under the vehicle.