Thread: Akra slip-on or M Performance....can't decide....
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      03-11-2013, 11:30 AM   #20
Evolve Automotive
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Drives: E46 M3 . E90 M3
Join Date: Jan 2013
Location: USA

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How about our Evolve E-tronic unit

Our unit only drones when the valves are open with full x-pipe. We will also be releasing a carbon fiber tips as shortly
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