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Yoshimura YZ450F 14-17/FX 16-17/WR450F 16-18 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler

The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivaled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.

  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Two-stage stepped baffle
  • Carbon fiber end-cap
  • Stainless steel tail-pipeRepack Kits, optional Inserts and Spark Arresters are available for all models

    This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.

    Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.

    Fitment:

    • Yamaha WR450F 2016
    • Yamaha WR450F 2017
    • Yamaha WR450F 2018
    • Yamaha YZ450F 2014
    • Yamaha YZ450F 2015
    • Yamaha YZ450F 2016
    • Yamaha YZ450F 2017
    • Yamaha YZ450FX 2016
    • Yamaha YZ450FX 2017

    Yoshimura YZ450F 14-17/FX 16-17/WR450F 16-18 RS-4 Stainless Slip-On Exhaust, W/ Aluminum Muffler

    SKU: YO-234812D321
    Regular price $1,199.99 $1,139.99 5% off
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    Yoshimura YZ450F 14-17/FX 16-17/WR450F 16-18 RS-4 Stainless Slip-On Exhaust, w/ Aluminum Muffler

    The work that went into developing the RS-4 muffler has paid big dividends in Off-road Racing; winning multiple Supercross and Motocross titles since it's inception. We've developed the current generation RS-4 based on that research & development, and the result is a unique design that provides an unrivaled combination of power and quiet exhaust tone. The RS-4 features a Polyresonant duplex chamber and two-staged stepped baffle for increased performance, while a carbon cone end cap finishes off its innovative styling.

    • Pentagonal-shaped sleeve
    • Front muffler cap functions as a polyresonant chamber which helps reduce noise
    • Two-stage stepped baffle
    • Carbon fiber end-cap
    • Stainless steel tail-pipeRepack Kits, optional Inserts and Spark Arresters are available for all models

      This product was designed to fit on a standard equipped motorcycle, as delivered from the factory. OE and aftermarket accessories not found on a bike as delivered from the factory may not be compatible with this product.

      Attention international customers: This product was designed and tested to be compatible with vehicles in the U.S. marketplace only. Compatibility, including fitment and performance, may vary by marketplace.

      Fitment:

      • Yamaha WR450F 2016
      • Yamaha WR450F 2017
      • Yamaha WR450F 2018
      • Yamaha YZ450F 2014
      • Yamaha YZ450F 2015
      • Yamaha YZ450F 2016
      • Yamaha YZ450F 2017
      • Yamaha YZ450FX 2016
      • Yamaha YZ450FX 2017