Thread: Exhaust Valves Closed in Sport Plus To Pass Sound DB
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      09-11-2020, 01:27 AM   #3
Yadadameans
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Drives: F87 M2 Competition
Join Date: Mar 2019
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Quote:
Originally Posted by bjorn///M View Post
I have the same dilemma as you. I have MPE on my M2C and I'm registered to go on 10/1. It is a 90 db day at Laguna.

Check this thread. https://f80.bimmerpost.com/forums/sh....php?t=1750168
Thanks for the thread. Seems like someone with a M4 passed 92db with AA midpipe in Sport+ full throttle
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