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      05-04-2010, 06:55 PM   #4
mixja
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Drives: 2011 E90 DCT Silverstone
Join Date: Jun 2008
Location: Beverly Hils, CA

Posts: 783
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Highly recommend Turner Test Pipes (primary cat delete) - see my review here - http://www.m3post.com/forums/showthread.php?t=379286

This definitely retains the closest sound to OEM, and no smell

I'm seeing what feels like 10% increase in low-mid range torque and 5% increase in peak power. iPhone dynolicious reports peak Gs in 2nd gear of 0.56G with turner test pipes, vs 0.50G with stock exhaust. This is with a Powerchip tune.
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