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11-05-2009, 05:08 PM
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#1 (permalink) |
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Junior Member
Join Date: Jun 2009
Posts: 3
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Does anybody know what the difference is between the fmf quiet core insert(040304) and the 94db insert (040631) for the 4.1 system? Some say that if you use a insert wich chokes the engine to much you loose a lot of power and built up heat in the exhaust.
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