FMF Factory 4.1 RCT Exhaust System (Megabomb/Titanium/Carbon End Cap) 044490 - Yamaha YZ450F 2026

FMF Factory 4.1 RCT Exhaust System (Titanium / Carbon End Cap) 044490 - Yamaha YZ450F 2026

Product Description

The FMF Factory 4.1 RCT Exhaust System incorporates advanced FMF Resonance Chamber Technology™ both internally and externally to maximize performance across the powerband.

Engineered with a shorter overall length that reduces crash vulnerability, this system supports Factory Forward Engineering by shifting the muffler closer to the motor to centralize mass. Built entirely from aerospace-grade materials, it reflects top-tier craftsmanship.

Top Features: FMF Factory 4.1 RCT Exhaust System

• Incorporates FMF Resonance Chamber Technology™ both internally and externally for optimized performance.
• Features a shorter overall length that resists crash damage and centralizes mass by moving the muffler closer to the engine.
• Constructed from aerospace-grade materials meeting exacting manufacturing standards.
• Equipped with a Megabomb style pipe, titanium construction, and a carbon fiber end cap.

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 intended for closed course use?
A: Yes, it is designated for closed course use only.

Q: What materials are used in the construction of the exhaust system?
A: It is built using aerospace-grade titanium components paired with a carbon fiber end cap.

Expert Pro-Tip

Expert Pro-Tip: When mounting a full titanium exhaust system, use anti-seize on the slip joints to prevent galling, and leave all header flange nuts and mid-pipe hardware loose until the entire system aligns naturally to avoid stress cracking.

Recommended Pairings:

• Yamaha YZ450F Performance Parts
• Motorcycle Tools & Accessories
• Motorcycle Chemicals & Maintenance

About Moto-House MX

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