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      04-16-2012, 09:20 PM   #19
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Join Date: Feb 2009
Location: North of 4K RPM

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Originally Posted by MrRoboto View Post
^^So aside from the sound, do you feel any power difference, does it seem to rev more freely?
10whp from the mids, as measured on both my 135i and 1M
2011 BMW E82 1///M: AW, all options; Renntech, Akrapovic, Forge, P3, RevoZ CF bits, many mods
1988 BMW E30 M3: Hennarot, S14, stock
2016 Porsche 981 GT4: Guards Red, LWBS, SC, full leather
1998 Porsche 993 C4S: Zenith Blue, last aircooled widebody, Bilstein PSS10, Fister II + Fabspeed exhaust
2008 Audi B7 RS 4: Sprint Blue, Audi Exclusive Euro Bucket Interior, Premium+Titanium, many mods