FMF Factory 4.1 Resonance Chamber Slip-On Exhaust for Husqvarna and KTM 250 Series

The FMF Factory 4.1 Resonance Chamber Slip-On Exhaust, part number 045634, is engineered to deliver exceptional performance for 2019-2021 Husqvarna FC 250, 2020-2021 KTM 250 SX-F, KTM 250 XC-F, and Gas-Gas MC 250F models. This exhaust system incorporates the latest Resonance Chamber Technology, designed to optimize exhaust flow and refine sound quality while maintaining maximum power output. Its innovative chamber design helps enhance exhaust pressure and improve overall engine performance, making it ideal for both competitive racing and recreational riding.
Constructed with a factory-forward engineering approach, the FMF Factory 4.1 system centralizes mass, reducing the risk of crash damage and ensuring durability. The patented canister shape increases internal volume, allowing for more sound-absorbing material to further reduce noise levels without sacrificing performance. This design ensures a balanced combination of power and sound management, giving riders confidence in various riding conditions. The exhaust features an innovative rear endcap that simplifies installation of tuning tip inserts or spark arrestors, providing versatility and ease of maintenance.
Included with the system is the Titanium Megabomb, which is specifically designed to maximize power output across the entire RPM range. The slip-on exhaust is tuned with optimized core specifications tailored for each application, ensuring the best possible fit and performance for your bike. Whether you're seeking improved throttle response or a more aggressive exhaust note, this exhaust system offers a significant upgrade over stock components, backed by FMF’s reputation for quality and engineering excellence.

Features:

• All new incorporating the latest in Resonance Chamber Technology

• Patented core shape lowers sound level while maintaining maximum power output

• Patented canister shape increases internal volume for more sound absorbing material

• Patented chamber design to enhance and refine exhaust pressure

• Factory Forward Engineering centralizes mass and is less prone to crash damage

• Tuned exhaust with optimized core specifications for each application

• Innovative rear endcap for simple installation of tuning tip inserts or spark arrestor

• Titanium Megabomb included to optimize each machine's power output

Fits,
Gas-Gas EX 250F 2021
Gas-Gas EX 250F 2022
Gas-Gas EX 250F 2023
Gas-Gas MC 250F 2021
Gas-Gas MC 250F 2022
Gas-Gas MC 250F 2023
Husqvarna FC 250 2019
Husqvarna FC 250 2020
Husqvarna FC 250 2021
Husqvarna FC 250 2022
KTM 250 SX-F 2019
KTM 250 SX-F 2020
KTM 250 SX-F 2021
KTM 250 SX-F 2022
KTM 250 XC-F 2019
KTM 250 XC-F 2020
KTM 250 XC-F 2021
KTM 250 XC-F 2022