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FMF Factory 4.1 RCT SL Slip-On Muffler Ti/CF Blue #042412 for Kawasaki

Product Details

FMF's Factory 4.1 RCT SL slip-on muffler incorporates the latest in RCT (Resonance Chamber Technology) both internally and externally. The core's shape lowers decibels without compromising power output. In addition, FMF designed the muffler specifically to achieve a shorter overall length so as to be less susceptible to crash damage. Complementary to FMF's Factory Forward Engineering, the muffler is also moved closer to the motor to centralize mass and improve handling. Each FMF Factory 4.1 RCT slip-on muffler is constructed from only aerospace grade materials that meet the California company's exacting specifications.

  • Massive power gains throughout the RPM range
  • Huge weight savings when compared to the stock muffler
  • Fabricated using the highest quality proprietary blend of alloy grade materials
  • FMF RTS (Rapid Tuning System) makes for easy exhaust insert changes
  • Includes USFS-approved spark arrestor and 94 dB sound insert
  • Fits OE or FMF headers
  • Comes with all required mounting hardware and easy-to-follow installation instructions
  • Made in the USA

Fit Guide

Model
Factory 4.1 RCT SL Slip-On Muffler
Color
Blue
Country of Origin
USA
Finish
Anodized
Mid-Pipe
Titanium
Muffler End Cap
Carbon Fiber
Muffler Sleeve
Titanium
USFS Approved Spark Arrestor
Yes

Product Fitment

This item fits the following applications:

Kawasaki KX250 4-Stroke 2025-2026
Kawasaki KX250F 4-Stroke 2025-2026
Kawasaki KX250X 4-Stroke 2025-2026