Originally Posted by Nate@Industry
The OEM M3 system and the Eisenmann Sport Performance share the same db level but the sound characteristic will be much different
moving vehicle = apr. 75 db
stationary vehicle = 92 db at 6.225 1/min
value of backpressure = 0,47 bar at 2. gear and 0,51 bar at 3. gear
weight of the muffler = apr. 21 kg
Nate, Any update on when you'll be getting the Sport units in?