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Yoshimura - RS-9 Full Exhaust System for KLX 140

Vital Information
Part No W-961-3901
Stock Level 1 Left

Yoshimura  full system for all three wheel sizes of the mean green trail machine 140, 140L and 140G. This new RS-9 Series full system not only increases the power, and torque, it reduces weight over the stock system. Unmistakable is the one of a kind look of the RS-9, add to that the legendary Yoshimura exhaust note!

Key features:

  • Increased muffler volume over stock system, resulting in better throttle response and improved noise cancellation
  • Reduced weight over OEM system: Yoshimura full system weight 5.6 lbs vs. stock system weight 6.7 lbs
  • Laser cut heat shield
  • Parallelogram-shaped muffler
  • Stainless steel header and Tail pipe
  • Carbon fiber end-cap


  • KLX140 - 2011-Present

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