View Single Post
      05-14-2008, 10:46 PM   #2
Nate@IND
BimmerPost Supporting Vendor
Nate@IND's Avatar
492
Rep
10,450
Posts


 
Drives: BMW
Join Date: Oct 2006
Location: Chicago

iTrader: (19)

The Eisenmann Sport and Race performance share the same external design. The Eisenmann Race performance uses straight-through technology. While the Sport performance has internal baffles and sound deadening materials. The Eisenmann Race performance reduces backpressure by 32%. Most Eisenmann systems for NA motors in the past have increased hp by 8-10. The Eisenmann Sport performance is much quieter than the Race and reduces backpressure by 25%.

Eisenmann Sport/Race system


Inside photo of the Sport performance


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....



Eisenmann Race Performance videos





Eisenmann Sport Performance videos



__________________