Thread: Some extra HP for our Roadsters?? (Within Reason)
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Old 10-07-2014, 01:41 AM   #3 (permalink)
Cheesehead
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Join Date: May 2014
Location: Oregon
Posts: 14
Drives: 2014 roadster
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Just installed Fast Intentions cat backs with 12" resonators. Nice growl, supposed to bump HP aprox+15
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