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      02-09-2013, 06:49 PM   #7
Denk
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Drives: E92 M3 ZCP
Join Date: May 2011
Location: PNW

iTrader: (2)

When I had the E.Race on it seemed to add some power but I think I was just pushing the car harder to get out of the drone zone. I've had a bunch of axle back exhausts on my e46 and e92, I've never noticed a power bump.