The FMF Ano Ti Factory 4.1 RCT Slip-On Muffler is engineered for select Honda CRF450R and CRF450RX models from 2021 through 2025. This tuned exhaust uses FMF Resonance Chamber Technology to reduce sound output while maintaining strong power performance. The patented core, canister, and chamber designs work together to optimize exhaust pressure, increase internal sound-absorbing volume, and refine engine response across the application-specific powerband.
Finished with a titanium canister and mid-pipe, this FMF Factory 4.1 RCT muffler combines lightweight construction with durable race-ready performance. Factory Forward Engineering centralizes mass to improve handling and helps reduce the likelihood of crash damage. The blue carbon fiber end cap adds a distinctive finishing detail, while the innovative rear end cap allows simple installation of tuning tip inserts or a spark arrestor.
This FMF slip-on muffler includes a spark arrestor and wash plug for convenient trail and maintenance use. It is designed as a direct-fit exhaust component for compatible Honda motorcycles and is supplied under manufacturer part number 041631 and vendor part number 041631. Fitment includes the 2021 Honda CRF450R and CRF450RX, 2022 Honda CRF450R and CRF450RX, 2023 Honda CRF450R and CRF450RX, 2024 Honda CRF450R and CRF450RX, and 2025 Honda CRF450R and CRF450RX. Verify the motorcycle model and year before installation.
Features:
- Resonance Chamber Technology: Uses FMF's latest chamber technology to help lower sound levels while maintaining maximum power output.
- Patented Core Shape: Reduces exhaust noise while supporting strong engine performance.
- Patented Canister Shape: Increases internal volume for additional sound-absorbing material.
- Patented Chamber Design: Enhances and refines exhaust pressure for application-specific performance.
- Factory Forward Engineering: Centralizes exhaust mass and helps reduce potential crash damage.
- Application-Specific Tuning: Optimized core specifications are developed for each compatible Honda application.
- Innovative Rear End Cap: Allows simple installation of tuning tip inserts or a spark arrestor.
- Titanium Construction: Includes a titanium canister and mid-pipe for lightweight durability.
- Blue Carbon Fiber Cap: Provides a distinctive, durable end-cap finish.
- Included Accessories: Includes a spark arrestor and wash plug.
- Fitment: Fits 2021-2025 Honda CRF450R and CRF450RX models.
- Manufacturer Part Number: 041631.
- Vendor Part Number: 041631.
Fitment:
2021 Honda CRF450R
2021 Honda CRF450RX
2022 Honda CRF450R
2022 Honda CRF450RX
2023 Honda CRF450R
2023 Honda CRF450RX
2024 Honda CRF450R
2024 Honda CRF450RX
2025 Honda CRF450R
2025 Honda CRF450RX
2026 Honda CRF450R
2026 Honda CRF450RX