The FMF Factory 4.1 RCT Titanium Slip-On Exhaust is engineered for select KTM and Husqvarna motocross and cross-country motorcycles. Featuring FMF Resonance Chamber Technology, this tuned exhaust uses a patented core shape to help reduce sound levels while maintaining strong power output. The patented canister design provides increased internal volume for additional sound-absorbing material, while the chamber design refines exhaust pressure for consistent performance across the application range.
Factory Forward Engineering centralizes the exhaust system’s mass and helps reduce exposure to crash damage. The titanium canister and mid-pipe provide a lightweight, high-performance construction suited to demanding off-road use. An innovative rear end cap simplifies installation of tuning tip inserts or the included spark arrestor, and the system also includes a wash plug for convenient maintenance. This FMF Factory 4.1 RCT slip-on is designed as a direct-fit performance upgrade for compatible motorcycles.
Fitment includes the 2018 KTM 450 SX-F Factory Edition; 2018 Husqvarna FC 450 Rockstar Edition; 2019 Husqvarna FX 350, FX 450, FC 350, and FC 450; and 2019 KTM 350 SX-F, 450 SX-F, 350 XC-F, and 450 XC-F. Verify motorcycle model and year before installation. Manufacturer: FMF Racing. Vendor part number: 045629. Part number: 045629. Model: Factory 4.1 RCT Titanium Slip-On.
Features:
- Resonance Chamber Technology: Uses the latest FMF chamber technology to balance sound control and performance.
- Patented Core Shape: Helps lower exhaust sound levels while maintaining maximum power output.
- Patented Canister Shape: 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 vulnerability to crash damage.
- Tuned Exhaust: Uses optimized core specifications for each motorcycle application.
- Titanium Construction: Includes a titanium canister and titanium mid-pipe for lightweight performance.
- Rear End Cap: Supports simple installation of tuning tip inserts or the included spark arrestor.
- Included Accessories: Includes a spark arrestor and wash plug.
- Fitment: Fits select 2018 KTM and Husqvarna models and 2019 KTM and Husqvarna models listed in the description.
Fitment:
2018 Husqvarna FC 450 Rockstar Edition
2018 KTM 350 SX-F
2018 KTM 350 XC-F
2018 KTM 450 SX-F
2018 KTM 450 SX-F Factory Edition
2018 KTM 450 XC-F
2019 Husqvarna FC 350
2019 Husqvarna FC 450
2019 Husqvarna FX 350
2019 Husqvarna FX 450
2019 KTM 350 SX-F
2019 KTM 350 XC-F
2019 KTM 450 SX-F
2019 KTM 450 XC-F
2020 Husqvarna FC 350
2020 Husqvarna FC 450
2020 Husqvarna FX 350
2020 Husqvarna FX 450
2020 KTM 350 SX-F
2020 KTM 350 XC-F
2020 KTM 450 SX-F
2020 KTM 450 XC-F
2021 Gas-Gas EX 350F
2021 Gas-Gas EX 450F
2021 Gas-Gas MC 450F
2021 Husqvarna FC 350
2021 Husqvarna FC 450
2021 Husqvarna FX 350
2021 Husqvarna FX 450
2021 KTM 350 SX-F
2021 KTM 350 XC-F
2021 KTM 450 SX-F
2021 KTM 450 XC-F
2022 Gas-Gas EX 350F
2022 Gas-Gas EX 450F
2022 Gas-Gas MC 350F
2022 Gas-Gas MC 450F
2022 Husqvarna FC 350
2022 Husqvarna FC 450
2022 Husqvarna FX 350
2022 Husqvarna FX 450
2022 KTM 350 SX-F
2022 KTM 350 XC-F
2022 KTM 450 SX-F
2022 KTM 450 XC-F
2023 Gas-Gas EX 350F
2023 Gas-Gas EX 450F
2023 Gas-Gas MC 350F
2023 Gas-Gas MC 450F