This product is vehicle specific. Click here to select your bike to ensure fitment.

Yoshimura RS-4D Exhaust System Honda CRF450R 2011-2012

$940.46 - $990.46
$1,044.95 - $1,094.95
10% off MSRP

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Yoshimura RS-4D Exhaust System Honda CRF450R

When it comes to exhaust systems designed for competition, Yoshimura and the Team Yoshimura Suzuki race team have always worked toward a single goal: helping you win. A perfect example of the result of our single-minded focus is the Yoshimura RS-4D Exhaust System. It builds on the technology that made the RS-4 incredibly successful on the racetrack and enhances its exceptional performance.

The RS-4D Exhaust boasts a unique dual-outlet design that increases the amount of open area at the exhaust outlet. With dual internal baffles, the RS-4D increases the exhaust gas flow rate, resulting in smoother power delivery and increased throttle control. It also offers increased horsepower and torque throughout the power curve, especially in the bottom- to mid-RPM range where riders need it most.


  • Unique dual-outlet carbon fiber end-cap
  • Dual internal baffles for enhanced exhaust flow
  • Pentagonal-shaped sleeve
  • Polyresonant front chamber which helps reduce noise
  • Titanium header
  • Yoshimura Signature Series muffler
  • Low-volume insert included
  • 100% Made in the USA


This product is vehicle specific. Click here to select your bike to ensure fitment.

This Product Fits:

CRF450R 2011, 2012

This item is also available for:

CRF250R 2011-2013
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Product Style Item # Manufacturer Product # Availability
Titanium/Carbon Fiber/Carbon Fiber 1014932 18201302 Only 1 Left: Ships next business day
Titanium/Titanium/Carbon Fiber 1014933 18201305 In Stock: Ships next business day