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      07-30-2012, 01:16 PM   #10
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Andrew@ActiveAutowerke's Avatar
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

Posts: 3,430
iTrader: (5)

I suggest going with our drop in filter, cat-less xpipe and tune to start.

X-pipe alone is good for 20 whp.

Here is a dyno with filter,pulley,tune and rear section only. (stock X-pipe)

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