View Single Post
      03-06-2013, 07:36 PM   #5
Apex Everything!
radiantm3's Avatar

Drives: >1000 HP in my garage
Join Date: Sep 2008
Location: Danville, CA

iTrader: (6)

Garage List
2013 BMW X5M  [4.33]
2011 E92 M3  [4.80]
2014 BMW i3  [0.00]
Originally Posted by Fen335i View Post
Thanks Guys, this is helpful. I have a Dinan rear section, so not super loud compared to some, but still much louder than stock at WOT. I'm guessing I'm over 92db's when wide open at a high rpm.
With just the dinan rear section, you'll probably be just fine upshifting a bit early between 5 and 6. You need to be ridiculously loud to worry about a mobile sound check.

You can also ask for a sound check and not get a strike if you do go over. They will explain that in the morning driver's meeting. That's what I recommend doing if you aren't sure if you will pass sound or not without lifting.

OEM M3 GTS Splitter/Wing/Harness Bar/Rear Seat Delete, Ohlin R&T, Brembo BBK, Akrapovic GT4, Alekshop Oil Cooler, ESS Tune/Pulley, Recaro SPG, 18" BBS FI, CAE Shifter, Vorschlag Camber Plates, Bimmerworld Toe-Links/End-Links/Motor Mounts, RD Sport Front Sway, Turner Solid Subframe/Diff Bushings, Awron Gauge.