FMF Factory 4.1 RCT Slip-On Exhaust KTM/Husqvarna 250-450 (16-19) | 045586 Leatt 2025 Tightly controlled tolerances ensure smooth

Tightly controlled tolerances ensure smooth operation

Now updated with a redesigned lead-in profile

The all new Turbinecore 2

Perfect clutch separation

Proper rigidity of the sidewall with the gummy compound provides extra bump absorption performance

FMF Factory 4.1 RCT Slip-On Exhaust KTM/Husqvarna 250-450 (16-19) | 045586 Leatt 2025 Tightly controlled tolerances ensure smoothThe Factory 4. 1 RCT incorporates the latest in FMF Resonance Chamber Technology both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering moving the muffler closer to the motor to centralize mass. The Factory 4. 1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at