EXHAUST
EXHAUST SYSTEMS AND SLIP-ON/ BOLT-ON MUFFLERS
QUALITY SINCE 1954
  • Every Yoshimura exhaust product is made by hand to the highest quality standards
  • Championship-winning racetrack experience and Yoshimura’s extensive R&D facility ensure these pipes perform
  • This dedication to research and development is only matched by Yoshimura’s dedication to uncompromising quality standards
  • True performance art for your motorcycle
  • SIGNATURE SERIES EXHAUST
    RACE SERIES EXHAUST
  • All Signature series exhaust are tested, documented
  • For closed-course competition use only; not intended
  • and marked with appropriate EPA noise
    for street use
    emissions labels
  • Meet noise level regulations of most worldwide race
  • sanctioning organizations
  • Marked with appropriate EPA noise emissions labels
  • CARB and EPA emissions “Replacement Parts”
  • Certified by independent laboratory for EPA noise levels
  • STREET SERIES EXHAUST
    ENDURO SERIES EXHAUST
  • An evolution of Yoshimura’s off-road exhaust system
  • muffler package
  • Equipped with USFS-approved spark arrestors,
  • Do not require changing the motorcycle’s emissions
  • forest-friendly noise levels and are tailpipe-
    control systems
    emissions compliant
  • Marked with appropriate EPA noise emissions labels
  • CARB and EPA emissions “Replacement Parts”
  • Not tested for EPA noise levels
  • Not tested for EPA noise levels
  • WORKS FINISH EXHAUST SYSTEMS/ SLIP-ON MUFFLERS
  • Contemporary satin/ matte finish increases fatigue strength and header pipe scratch resistance
  • Provides uniform heat coloration for the entire length of the header pipes
  • Available on select exhaust systems and slip-on muffler series, see charts
  • RS-9D EXHAUST
    SYSTEMS AND SLIP-ONS
    WITH DUAL MUFFLERS
  • Dual-muffler design
  • Achieves maximum performance, mass
  • centralization, and rider useability
  • Systems feature three-stage tapered
  • better throttle response and
    power delivery
    1820-1805
  • Vertical divider splits the exhaust gases
  • 1820-1771
    throttle response
  • Parallelogram-shaped muffler bodies increase muffler volume over the stock system for even crisper throttle response and reduced noise levels
  • Systems and slip-on mufflers meet AMA noise sound regulations right out of the box (AMA 2-Meter Max and Amateur 94 dB sound compliant)
  • Available in Signature type, please see above for an explanation of Yoshimura exhaust series types
  • RS-9T EXHAUST SYSTEMS AND SLIP-ON MUFFLERS
  • Dual-muffler design
  • Achieves maximum performance, mass centralization, and rider useability
  • Available in Signature type, please see above for an explanation of Yoshimura exhaust series types
  • SYSTEMS
    SERIES
    MUFFLER TYPE
    HEADER/ MUFFLER/ END CAP TYPE
    PART #
    SUG. RETAIL
    HONDA
    CRF250R 14-17
    Signature
    RS-9D
    Stainless/ aluminum/ carbon fiber (Dual)
    1820-1492
    $895.00
    Signature
    RS-9D
    Titanium/ titanium/ carbon fiber (Dual)
    1820-1493
    1,395.00
    Signature
    RS-9T
    Stainless/ stainless/ carbon fiber
    1820-1805
    977.00
    CRF450R 13-14
    Signature
    RS-9D
    Stainless/ aluminum/ carbon fiber (Dual)
    1820-1397
    895.00
    Signature
    RS-9D
    Titanium/ carbon fiber/ carbon fiber (Dual)
    1820-1398
    1,495.00
    Signature
    RS-9D
    Titanium/ titanium/ carbon fiber (Dual)
    1820-1399
    1,395.00
    Signature
    RS-9D
    Stainless/ aluminum/ carbon fiber (Dual)
    1820-1573
    895.00
    Signature
    RS-9T
    Stainless/ stainless/ carbon fiber (Dual)
    1820-1725
    977.00
    KAWASAKI
    KLX140/L/G 11-18
    Enduro
    RS-9 Works Finish
    Stainless/ aluminum/ carbon fiber
    1820-1771 1
    479.00
    1 Single muffler.
    SLIP-ON MUFFLERS
    SERIES
    MUFFLER TYPE
    MID-PIPE/ MUFFLER/ END CAP TYPE
    PART #
    SUG. RETAIL
    HONDA
    CRF250R 14-17
    Signature
    RS-9D
    Stainless/ aluminum/ carbon fiber (Dual)
    1821-1592
    $725.00
    Signature
    RS-9D
    Stainless/ stainless/ carbon fiber
    1821-1843
    789.00
    Signature
    RS-9D
    Stainless/ aluminum/ carbon fiber (Dual)
    1821-1463
    725.00
    CRF450R 15-16
    Signature
    RS-9D
    Stainless/ aluminum/ carbon fiber (Dual)
    1821-1645
    725.00
    CRF450R 17-18
    Signature
    RS-9T
    Stainless/ stainless/ carbon fiber (Dual)
    1821-1799
    777.00
    CRF450X 17-18
    Signature
    RS-9T
    Stainless/ stainless/ carbon fiber (Dual)
    1821-1799
    777.00
    DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.
    SEE PAGE 4 FOR IMPORTANT EMISSION DEFINITIONS AND REGULATORY COMPLIANCE AND WARRANTY INFORMATION.
    2018 PARTS UNLIMITED OFFROAD