Factory4.1 SL (Slip-On)

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The Factory 4.1 is FMF Racing's premier performance exhaust. With 30 years of racing experience behind it, the Factory 4.1 takes advantage of everything we've learned on the race track.

-Available in natural or blue anodized finish.

-Horsepower gains throughout RPM range.

-Available with titanium or high strength stainless steel midpipe.

-94dB Insert Included

Free ground shipping on web orders over $250 (USA excluding AK and HI)

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