Introducing the FMF Factory 4.1 RCT: Revolutionizing Motocross / Enduro / Woods Performance with Resonance Chamber Technology™
If you own a European Motocross or Woods Bike and need more Power:
Gas Gas - 2019-2023 MC 250F, EX 250F, EX 350F, EX 450F, and MC 450F.
Husqvarna - FC 250, FX 350, FX 450, FC 350, and FC 450.
KTM - 250 SX-F, 350 XC-F, 450 XC-F, 350 SX-F, 450 SX-F, and 450 SX-F Factory Edition.
In the world of Motocross or Off-Road Performance is everything. Riders are constantly searching for ways to improve their bikes' power, speed, and efficiency to gain an edge over the competition. Enter the Factory 4.1 RCT, a game-changing exhaust system by FMF that's taking the industry by storm. This cutting-edge product incorporates FMF's proprietary Resonance Chamber Technology™ (RCT) both internally and externally to deliver unparalleled power gains and weight savings.
Aerospace Grade Materials for Superior Quality
The Factory 4.1 RCT isn't your average exhaust system. Manufactured entirely in FMF's Southern California factory, it is constructed from aerospace grade materials that meet their stringent specifications. This ensures exceptional quality and durability even under the most demanding conditions.
Shorter Length for Enhanced Protection
One innovative feature of the Factory 4.1 RCT is its shorter overall length. By reducing the system's size, FMF has made it compact and less susceptible to damage in the event of a crash. This design also perfectly complements their Factory Forward Engineering philosophy—moving the muffler closer to the motor centralizes mass and contributes to enhanced handling.
Massive Power Gains throughout the RPM Range
If you're looking for an exhaust system that will boost your bike’s performance across the entire RPM range, look no further than the Factory 4.1 RCT. Its advanced design delivers massive power gains that will leave competitors in the dust.
Huge Weight Savings without Compromising Performance
Even though this exhaust system packs a punch, it doesn't weigh down your bike. In fact, installing the Factory 4.1 RCT will result in significant weight savings without sacrificing any performance benefits.
FMF Factory 4.1 RCT 94db Spark Arrestor Insert
Rapid Tuning System (RTS) for Easy Adjustments
Need to make adjustments to your exhaust system? The Factory 4.1 RCT has you covered with its built-in RTS (Rapid Tuning System). This user-friendly feature makes it quick and easy to fine-tune your exhaust for optimum performance.
The Factory 4.1 RCT by FMF is an incredible breakthrough in motorcycle technology.
The Factory 4.1 RCT is a revolutionary exhaust system for euro motorcycles (KTM, Husqvarna and Gas Gas) that utilizes Resonance Chamber Technology for unparalleled power gains and weight savings. It is constructed from aerospace grade materials for exceptional quality and durability, has a shorter length for enhanced protection and handling, and delivers massive power gains throughout the RPM range. Additionally, it results in significant weight savings without sacrificing any performance benefits and features a Rapid Tuning System for easy adjustments.