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Exhaust tailpipe colour

Old 12-11-2010, 03:28 AM
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Join Date: Nov 2005
Location: NY, LI
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My RUF GT2 has a built/upgraded motor and turbos, obviously remapped, high flow race cats and exhaust... On the track the inside of the exhaust tips/pipes are a greyish color, and that's with 93 pump gas, I don't run leaded or unleaded race gas.. My car is A okay, stout and healthy as can be, I wouldn't be worried
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