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      01-30-2013, 06:49 AM   #13
maesd74
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Drives: 2011 M3 sedan comp package
Join Date: Apr 2012
Location: Denver, CO

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Quote:
Originally Posted by stylin8o8
test pipes are all well and good why didnt you just op for the Akra Evo X pipe?
Most likely because test pipes perform virtually the same and have virtually the same gains as an aftermarket catless x-pipe for at least a third of the cost.
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