FMF Factory 4.1 RCT Slip-On Muffler (Titanium/Carbon End Cap) 044486 — Yamaha YZ250F / WR250F / YZ250FX 2019-2026

FMF Factory 4.1 RCT Slip-On Muffler (Titanium / Carbon End Cap) 044486 — Yamaha YZ250F / WR250F / YZ250FX 2019-2026

Product Description

The FMF Factory 4.1 RCT Slip-On Muffler incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally.

Engineered with a shorter overall length, it is less susceptible to crash damage and complements Factory Forward Engineering by moving the muffler closer to the motor to centralize mass. Built entirely from aerospace-grade materials meeting exacting specifications, it is manufactured 100% at the Southern California factory.

Top Features: FMF Factory 4.1 RCT Slip-On Muffler

• Incorporates FMF Resonance Chamber Technology™ both internally and externally.
• Shorter overall length reduces crash vulnerability and centralizes mass by moving closer to the engine.
• Constructed exclusively from aerospace-grade materials meeting exacting specifications.
• Manufactured 100% at the Southern California facility.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Is this exhaust system street legal?
A: No, it is designated for closed course use only.

Q: Where is the Factory 4.1 RCT manufactured?
A: It is manufactured 100% at FMF's Southern California factory.

Expert Pro-Tip

Expert Pro-Tip: When installing a titanium slip-on muffler, clean the mid-pipe connection thoroughly and apply a thin layer of high-temperature anti-seize or silicone sealant to prevent leaks before tightening the mounting clamp.

Recommended Pairings:

• Yamaha YZ250F / YZ250FX Performance Parts
• Motorcycle Tools & Accessories
• Motorcycle Chemicals & Maintenance

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