[///M Power-Belgium]

Originally Posted by M3ANMACHINE

99% sure that it's over 95dB. I got a red ticket with my ACM mod and swapped to full stock for the appointment just to be safe. The limit is 95dB +\- 1.5. So 96.5dB.

The measurement is done from one meter back and one meter to the left or right away from the car at 75% of max rpm, so around 5500rpm.
I tested it on my car with a dB meter and the ACM bypass mid and it was 100dB+.

Swap to stock to be safe, otherwise you'll be in for a huge hassle. Also, you can get the ticket dismissed if you fight it and show the judge that you passed the ref inspection and photos of the car at the time of the ticket and after.

Lastly, you CANNOT drive the car until the red inspection. If you're caught, you will get a ticket for unlawful operation of a vehicle. Absolutely stupid, but ask me how i know....

Good luck.

Negative . Check the video in # 6 => https://www.m3post.com/forums/showthread.php?t=1514690