Same-day shipping cutoff: Noon Pacific Time

Spring time is in full swing here at ProCycle.  With these busy days please be sure to let us know if your order is time sensitive.  We try to do as much as we can to accommodate your upcoming trip.  

Muffler, Slip-On Yoshimura RS-9

KLX140(R) '11 - '25 KLX140L(RL) '11 - '25 KLX140G(RF) '17 - '25
Made in USA WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
  • Dual-muffler design exhaust system
  • Achieves maximum performance, mass centralization, and rider usability
  • Systems feature three-stage tapered headpipe for the best power gains, better throttle response and power delivery
  • Vertical divider splits the exhaust gases more evenly for smoother flow to the mufflers for better mid-top power and throttle response
  • Parallelogram-shaped muffler bodies increase muffler volume over the stock system for even crisper throttle response and reduced noise levels
  • Systems meet AMA noise sound regulations right out of the box (AMA 2-Meter Max and Amateur 94 dB sound compliant)
  • Muffler inserts are tunable to adjust power delivery and noise level
Please contact us for availability information
$499.95