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Old 10-22-2002 | 06:01 PM
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TailTwister
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From: Menasha, WI
Default I need convincing

That sure sounds like the 91 FX will out perform it on top end by quite a bit. Jett says a stock muffler 91FX will do about 10,700 rpm with a 14x8 APC. Their muffler brings the rpm to 11,500. Does anybody have 91FX numbers that say it will not?