3 Inch pipe from stock headers into hi flow cats???? HELP
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Senior Member
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From: Kentucky
3 Inch pipe from stock headers into hi flow cats???? HELP
Hey guys would there be any advantage of doing 3 inch pipe from stock headers into hi flow cats ( one each side ) and then into a si/so magnaflow muffler on a 2004 fx4 5.4??? thanks for the help
Senior Member
Joined: Jan 2006
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From: Vienna, Georgia
Originally Posted by rrch129
Hey guys would there be any advantage of doing 3 inch pipe from stock headers into hi flow cats ( one each side ) and then into a si/so magnaflow muffler on a 2004 fx4 5.4??? thanks for the help
