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Old 03-26-2006, 11:02 AM
VentoGT VentoGT is offline
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Location: Atlanta, GA
 
Join Date: Mar 2006
Posts: 36
Mein Auto: 2002 M3 Coupe SMG
I don't know about backpressure on my SuperSprint exhaust, but it sounds pretty damned good and throaty without being over the top. It definitely growls more than the stock exhaust, and it doesn't drone at speed either.
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1962 Porsche 356 Coupe Champagne/Black
1988 Porsche 911 M491 Cab Granite Green/Linen
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