Upgrade the exhaust performance of your compatible Kawasaki motocross or cross-country motorcycle with the FMF Factory 4.1 RCT Titanium Slip-On Exhaust. Designed with FMF Resonance Chamber Technology, this tuned exhaust helps reduce sound levels while maintaining strong power output. The patented core shape and chamber design refine exhaust pressure for responsive performance across the engine’s operating range.
The titanium canister and mid-pipe provide a lightweight, durable construction suited to demanding off-road use. FMF Factory Forward Engineering centralizes mass and helps reduce the risk of crash damage, while the patented canister shape creates additional internal volume for sound-absorbing material. The innovative rear end cap allows simple installation of tuning tip inserts or a spark arrestor, making the system adaptable for track and trail applications.
This FMF Factory 4.1 RCT slip-on exhaust includes a spark arrestor and wash plug for convenient installation and maintenance. It is designed to fit 2019–2023 Kawasaki KX450F models and 2021–2023 Kawasaki KX450X models. Verify motorcycle year, model, and exhaust configuration before installation. Manufacturer and vendor part number: FMF 042371.
Features:
- Resonance Chamber Technology: Incorporates FMF’s latest chamber technology to help control sound while preserving power output.
- Patented Core Shape: Lowers exhaust sound levels while maintaining 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 mass and helps reduce susceptibility to crash damage.
- Application-Tuned Exhaust: Uses optimized core specifications for compatible Kawasaki models.
- Innovative Rear End Cap: Simplifies installation of tuning tip inserts or the included spark arrestor.
- Titanium Construction: Features a titanium canister and mid-pipe for lightweight durability.
- Included Accessories: Comes with a spark arrestor and wash plug.
- Fitment: Fits 2019–2023 Kawasaki KX450F and 2021–2023 Kawasaki KX450X motorcycles.
- Manufacturer Part Number: FMF 042371.
- Vendor Part Number: 042371.
Fitment:
2019 Kawasaki KX450F
2020 Kawasaki KX450F
2021 Kawasaki KX450F
2021 Kawasaki KX450X
2022 Kawasaki KX450F
2022 Kawasaki KX450X
2023 Kawasaki KX450F
2023 Kawasaki KX450X