Factory 4.1 RCT Exhaust Silencer 18-23 Sherco FSE 250 300 450 500 - FMF 045658
FMF Racing Factory 4.1 RCT Slip-On exhaust with titanium anodised finish and carbon fibre end cap. Features FMF Resonance Chamber Technology for improved performance and sound attenuation. Compact, forward-positioned design minimises susceptibility to crash damage while enhancing mass centralisation for sharper handling. Precision-constructed in Southern California using aerospace-grade titanium and a robust stainless steel midpipe. Offers substantial weight reduction and noticeable power gains across the RPM spectrum. New Rapid Tuning System (RTS) allows for swift exhaust tuning adjustments. Closed-course use only. Includes spark arrestor screen insert. Muffler material: Titanium (blue anodised). Midpipe material: Stainless steel. End cap: Carbon fibre. Item ID: 045658. Type: Slip-On. Configuration: Single. Weight: 3600g.
- SKU
- 06-9945.FMF.FACT
- Brand
- FMF Exhausts
- Availability
- In Stock (3)
FULL DESCRIPTION
FMF Factory 4.1 RCT Slip-On Exhaust System
Experience peak performance with the FMF Racing Factory 4.1 RCT Slip-On exhaust. Engineered with FMF's innovative Resonance Chamber Technology™ both internally and externally, this system delivers significant power gains across the entire RPM range. Its compact, forward-mounted design not only aids in mass centralization for improved handling but also offers increased protection against crash damage.
Crafted in Southern California, this slip-on features aerospace-grade titanium construction with a striking blue anodised finish and a durable carbon fibre end cap. The robust stainless steel midpipe ensures longevity, while the overall lightweight design enhances agility and responsiveness.
Key Features:
- Incorporates FMF Resonance Chamber Technology™ for enhanced performance and sound control.
- Shorter muffler design reduces susceptibility to crash damage and improves mass centralization.
- Constructed from high-grade aerospace titanium with a blue anodised finish.
- Significantly reduces weight for improved vehicle dynamics.
- Features a premium carbon fibre end cap for durability and a sleek aesthetic.
- Includes the Rapid Tuning System (RTS) for quick and easy exhaust tuning adjustments.
- Provides substantial horsepower and torque increases across all RPM levels.
- Comes with a spark arrestor screen insert for trail riding legality.
- Intended for closed-course competition use only.
Specifications:
- Type: Slip-On
- Configuration: Single Muffler
- Muffler Construction: Titanium (Blue Anodised Finish)
- Midpipe Material: Stainless Steel
- End Cap Material: Carbon Fibre
- Spark Arrestor: Included
- Optional Accessories: 94dB quiet insert available separately


