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      06-24-2011, 10:14 PM   #9
phusion974
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Armenia
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Drives: OE Tuned C63
Join Date: Oct 2010
Location: L.A.

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You can go with the Challange, Gintani, Active, or Akrapovic X pipes. There are alot of options out there.
Personally I would go with either the Challenge Race or Gintani Catless.