08-04-2002, 09:36 PM
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Senior Club Cobra Member
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Join Date: May 2001
Cobra Make, Engine: A CSX Cobra,1966 GT350 and an '06 Ford Heritage GT
Posts: 1,829
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Not Ranked
DynoMax inserts are quickly building a good rep. The average 'as delivered' set of sidepipes seem to average about a 5-10% hp loss..and thats a heck of a lot! I remember reading in the Shelby American that they did a dyno test on OE Cobras, and found that the oe pipes were draining close to 75 hp off of a 427!
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"I think we have more machinery of government than is necessary, too many parasites living on the labor of the industrious." Thomas Jefferson
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