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 Blue Anodized Titanium 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 specifically to our standards.
Features:
Notice:Closed Course Use Only
Item ID: 045669
Type: Slip-On
Configuration: Single
Const: Titanium
Finish: Blue Anodized
Midpipe: Titanium
Endcap: Carbon
Spark Arrestor: Screen Insert (included)
Carb Warning: no
Quiet Insert: Meets AMA Professional Sound Requirements
Weight: 6.7 lbs
| Make | Model | Year |
|---|---|---|
| GAS GAS | EC 450F | 24-25 |
| GAS GAS | EC 500F | 25-26 |
| GAS GAS | EW 500F | 24 |
| GAS GAS | EX 450F | 24 |
| GAS GAS | MC 450F | 24-26 |
| GAS GAS | MC 450F FACTORY EDITION | 23 |
| HUSQVARNA | FC 450 | 23-27 |
| HUSQVARNA | FE 450 | 24-26 |
| HUSQVARNA | FE 501W | 24 |
| HUSQVARNA | FX 450 | 23-27 |
| KTM | 450 SX-F | 23-27 |
| KTM | 450 SX-F FACTORY EDITION | 22 |
| KTM | 450 XC-F | 23-27 |
| KTM | 450 XCF-W | 24-27 |
| KTM | 500 XW-F | 24 |