Thread: Performance lost on aftermarket exhaust?
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Old 04-21-2014, 04:13 PM   #18
thstone
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Join Date: Nov 2010
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Check out this post: http://986forum.com/forums/general-discussions/51783-top-speed-pro-1-catback-exhaust-hp-increase.html
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1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
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