Quote:
Originally Posted by Nate@IND
We are located in Palatine IL. We have the Eisenmann Race performance installed on our E92 M3. Let me know if you want to stop by and check out our car in person 
http://www.m3post.com/forums/showthread.php?t=114331
SPORT-Version:
moving vehicle = 75 db
stationary vehicle = 92 db at 6.225 1/min
value of backpressure = -25%
weight of the muffler = apr. 21 kg
RACE-Version:
moving vehicle = apr. 95 db
stationary vehicle = apr. 102 db at 6.225 1/min
value of backpressure = apr. -32%
weight of the muffler = apr. 21 kg
Please note these values are always depending on external circumstances as feg. barometric pressure, outside temperature, abrasion of the pre silencers, abrasion of the cat-converter, etc....
New video of the Eisenmann Race Performance.
Eisenmann Sport Performance videos 
New Revving video: Eisenmann Race performance with Supersprint X-pipe
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Amazing videos!! Thank you so much for posting these with the various setups. This is extremely helpful for deciding which one I prefer.