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Old 10-19-2010, 12:43 PM   #22 (permalink)
fuct
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Quote:
Originally Posted by COD4 View Post
Maybe others beside digi.. Can confirm if they have had high flow cats or test pipes and ran into this problem..
the more backpressure at the cat means more heat build up. HFC will be less hot than stock but still hot!!!!! so a shield might be needed. test pipes have zero build up. the hot gass fly out the exhaust.
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