N55 midpipe or maddad
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04-11-2012, 12:27 AM
Drives: 1M (Sold), M3 F80
Join Date: Mar 2011
Originally Posted by
So how much is the gain HP over stock ?
Didn't dyno stock. expect 8HP at the wheels and improved throttle response.
Gains between Berk/N55/MadDad's are probably all similar, choice comes down to the sound you want.
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