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Old 08-09-2010, 09:36 PM   #16
Strokedhog
 
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Drives: 2010 2SS M6 Black
Join Date: Nov 2009
Location: New York
Posts: 102
I went with solo on the cats and was running thier mach x exhaust since last winter. Together the sound rocks. The engine revs so much faster, on the intial ride I hit the rev limiter on the first run out of the shop. Amazing difference the car pulls like a frieght train. I dont need a dyno to show me the gain.
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