Description
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, we achieve a shorter overall length that is less susceptible to crash damage and complementary to our Factory Forward Engineering - moving the muffler closer to the motor to centralize mass. The Factory 4.1 RCT is constructed from only aerospace grade materials that meet our exacting specifications and is manufactured 100% at our Southern California factory.
-Available in Natural Aluminum Muffler with Carbon End Cap
-Massive Power gains throughout the RPM range.
-Huge weight savings
-New RTS (Rapid Tuning System)
-FMF uses the highest quality proprietary blend of alloy grade titanium made especially to our standards.
Notice:Closed Course Use Only
Item ID: 045680
Type: Slip-On
Configuration: Single
Const: Aluminum
Finish: Gray Anodized
Midpipe: Stainless Steel
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Quiet Insert: Meets AMA Professional Sound Requirements
Weight: 5.5 lbs.
Fitment and Use
Designed for KTM 500 EXC 2024-2027; Husqvarna FE501 2024-2027. This item is identified for closed-course or competition use; verify applicable regulations before purchase or use. Confirm the exact vehicle, model year, required mating exhaust components, mounting hardware, sound requirements, spark-arrestor requirements, and emissions or competition rules before ordering or installation.
Updated Fitment Through 2027
Husqvarna FE501 2024-2027; KTM 500 EXC 2024-2027.
- Brand: FMF