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      03-12-2012, 03:08 PM   #4
M3pnoy
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Drives: Amuse W/B s2000, A/W 08 M3
Join Date: Dec 2009
Location: Bergen County, NJ

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Quote:
Originally Posted by ROB_S2K View Post
What's the difference between this one and the F1 Evolution? This one looks like it has the valves as well.
I believe the design of the x-pipe is the difference and they claim the f1 evolution is 20% louder then sport version on open valves. I personally have the f1 evolution innotech.
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