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      07-30-2012, 02:16 PM   #10
Andrew@ActiveAutowerke
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Drives: 435I - 2017 F80 M3 On its way
Join Date: Dec 2011
Location: Miami Fl

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)