FMF Racing KX450 Slip-Ons

Cycle News Staff | January 20, 2026

FMF Racing has a new slip-on exhaust for 2024-26 KX450F/KX450X models.

FMF Racing KX450 Slip-Ons

The Factory 4.1 RCT Titanium exhaust ($899.99) is anodized blue and comes with a carbon-fiber end-cap. Constructed from aerospace-grade materials and manufactured at FMF’s SoCal factory, the exhausts utilized FMF’s Resonance Chamber Technology to optimize power output.

FMF Racing KX450 Slip-On

Performance and sound output can be tailored with FMF’s Rapid Tuning System, and the mufflers are shorter than the stock unit for a centralized mass, which makes them less susceptible to damage in a tipover.

 

FMF Racing KX450 Slip-On installed

Factory 4.1 Titanium Key Features

  • Titanium construction for reduced weight
  • Maintain OEM mounting positions while improving power
  • Power & torque gains with increased horsepower across the rpm range

For more information, visit www.fmfracing.com

Click here for more New Products on Cycle News.