Upgrade the exhaust performance and sound control of your Beta RR with the FMF Factory 4.1 RCT Slip-On Muffler. This tuned exhaust system uses FMF Resonance Chamber Technology and application-specific core specifications to help maintain strong power output while refining exhaust pressure and reducing sound levels. The anodized titanium canister and titanium mid-pipe provide a lightweight, durable construction suited to demanding off-road riding.
The patented core and canister designs increase internal volume for additional sound-absorbing material, while Factory Forward Engineering centralizes mass and helps reduce vulnerability to crash damage. An innovative rear end cap simplifies installation of tuning tip inserts or a spark arrestor. The muffler includes a spark arrestor and wash plug for practical trail maintenance and off-road use, along with a carbon fiber rear cap for a performance-focused finish.
FMF manufacturer and vendor part number 045668 is designed to fit 2020-2022 Beta 350 RR, 390 RR, 430 RR, and 480 RR models, including RR and RE configurations where specified. Confirm your motorcycle model and exhaust configuration before installation. This product is a slip-on muffler intended to work with the original motorcycle exhaust system and related mounting hardware.
Features:
- Resonance Chamber Technology: Uses FMF's latest chamber technology to reduce sound levels while maintaining maximum power output.
- Patented Core Shape: Helps refine exhaust performance and control sound.
- Patented Canister Design: Increases internal volume for more sound-absorbing material.
- Patented Chamber Design: Enhances and refines exhaust pressure for application-specific performance.
- Factory Forward Engineering: Centralizes mass and helps reduce potential crash damage.
- Tuned Exhaust: Uses optimized core specifications for the application.
- Rear End Cap: Supports simple installation of tuning tip inserts or a spark arrestor.
- Titanium Construction: Features an anodized titanium canister and titanium mid-pipe.
- Included Accessories: Includes a spark arrestor and wash plug.
- Fitment: Fits 2020-2022 Beta 350 RR, 390 RR, 430 RR, and 480 RR models, including applicable RR and RE configurations.
Fitment:
2020 Beta 350 RR
2020 Beta 350 RR (RE)
2020 Beta 390 RR
2020 Beta 390 RR (RE)
2020 Beta 430 RR
2020 Beta 430 RR (RE)
2020 Beta 480 RR
2020 Beta 480 RR (RE)
2021 Beta 350 RR
2021 Beta 350 RR (RE)
2021 Beta 390 RR
2021 Beta 390 RR (RE)
2021 Beta 430 RR
2021 Beta 430 RR (RE)
2021 Beta 480 RR
2021 Beta 480 RR (RE)
2022 Beta 350 RR
2022 Beta 350 RR (RE)
2022 Beta 390 RR
2022 Beta 390 RR (RE)
2022 Beta 430 RR
2022 Beta 430 RR (RE)
2022 Beta 480 RR
2022 Beta 480 RR (RE)
2023 Beta 350 RR
2023 Beta 350 RR (RE)
2023 Beta 390 RR
2023 Beta 390 RR (RE)
2023 Beta 430 RR
2023 Beta 430 RR (RE)
2023 Beta 480 RR
2023 Beta 480 RR (RE)
2024 Beta 350 RR
2024 Beta 350 RR (RE)
2024 Beta 390 RR
2024 Beta 390 RR (RE)
2024 Beta 430 RR
2024 Beta 430 RR (RE)
2024 Beta 480 RR
2024 Beta 480 RR (RE)
2025 Beta 350 RR
2025 Beta 350 RR (RE)
2025 Beta 390 RR
2025 Beta 390 RR (RE)
2025 Beta 430 RR
2025 Beta 430 RR (RE)
2025 Beta 480 RR
2025 Beta 480 RR (RE)