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  FMF Factory 4.1Carbon SLIP-ON
 
 
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Retail price $599.95
Our price $525.95
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Product Code: FMF8-PU1820-0418

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Description
 
• The Lightest Slip-on on the Market!
• Improved Overall Power Output
• Angle Cut Canister for Compactness
• Exclusive Mounting Design
• Easily Serviced for Re-Packing

The Factory 4.1 is FMF Racing’s premier performance exhaust system incorporating every conceivable technological advantage taken from the thirty plus years of our racing heritage. Featuring proprietary trade secrets such as the uniquely designed Chamber Core and exclusive PowerBomb header for full systems, the Factory4.1 is guaranteed to produce more horsepower throughout the entire RPM range! The impressive gains observed on the dyno do not give justice to the power that’s put to the ground. After all, would Factory KTM or Yamaha of Troy use anything but the very best performing exhaust systems?

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