Thread: tsp headers
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Old 12-24-2013, 08:25 PM   #14
shibbs
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Drives: 2012 IOM RS/SS 6MT
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Location: West Twin Cities, MN
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Quote:
Originally Posted by steven2680 View Post
Big diff in power
I dyno'd an additional 33hp peak from stock after the tune. Headers was literally the only thing I changed. Still stock catback.
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