FMF Factory 4.1 RCT Titanium Slip-On Exhaust System 045633

The Factory 4.1 RCT Titanium Slip-On delivers a feather-light, blue-anodized titanium muffler with a carbon end cap that sharpens off-road performance while trimming weight. Built for demanding terrain, this slip-on directly contributes to crisper throttle response and stronger mid- and top-end power across RPM ranges.

FMF’s Resonance Chamber Technology™ is implemented both inside and out to optimize exhaust flow and manage sound, yielding a more aggressive tone without excess noise. A noticeably shorter overall length reduces vulnerability to crash damage and, alongside Factory Forward Engineering, centralizes mass by bringing the muffler closer to the engine for improved handling and mass distribution.

Crafted from aerospace-grade titanium and manufactured 100% in FMF’s Southern California facility, the 045633 embodies durability and precision. The system follows FMF’s commitment to high-strength alloys and exacting tolerances to withstand rugged terrains and repeated track use.

New RTS (Rapid Tuning System) enables quick adjustments to sound inserts, allowing on-the-fly tuning to suit track conditions or forestry requirements without a complex teardown.

Designed for off-road motorcycles and easy installation, the Factory 4.1 RCT Slip-On is a purposeful upgrade for riders seeking immediate power gains, reduced weight, and a refined exhaust note that still respects trail regulations.

• Blue anodized titanium muffler with carbon end cap
• Resonance Chamber Technology for optimized flow and sound
• Shorter length to minimize crash risk and centralize mass
• 100% FMF-made in Southern California using aerospace-grade materials
• New RTS Rapid Tuning System for quick sound insert changes

The 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 our Southern California factory.

-Available in Blue Anodized Titanium Muffler with Carbon End Cap 

-Massive Power gains throughout the RPM range.

-Huge weight savings

-New RTS (Rapid Tuning System)

-FMF uses the highest quality proprietary blend of alloy grade titanium made specifically to our standards.

The FMF Racing Factory 4.1 RCT exhaust system, part number 045633, is engineered to enhance the performance of off-road motorcycles. Designed with precision, this exhaust system features a lightweight construction that contributes to better handling and increased acceleration. Its durable materials ensure longevity, making it suitable for demanding terrains and rigorous riding conditions. The FMF Factory 4.1 RCT delivers improved exhaust flow, which can translate into noticeable power gains and a more aggressive sound that enthusiasts seek. Installation is straightforward, and the system is compatible with a variety of motorcycle models, providing a reliable upgrade for riders looking to maximize their bike's potential.

Features:

• Lightweight construction for improved handling and acceleration

• Durable materials designed to withstand harsh riding conditions

• Enhanced exhaust flow for increased power output

• Aggressive sound profile for a more engaging riding experience

• Easy installation compatible with multiple off-road motorcycle models