
FMF RACING - STAINLESS STEEL ALUM. FACT-4.1 RCT W/R.CARBON CAP FULL SYSTEM - 045638 - KTM/HUSQ/GASGAS 19-22 450
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, they achieve a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and is manufactured 100% at FMF's Southern California factory.
Features:
- Available in Natural Aluminum with Carbon Fiber End Cap
- Massive Power gains throughout the RPM range.
- Huge weight savings
- New RTS (Rapid Tuning System)
- FMF uses the highest quality proprietary blend stainless steel made especially to their standards.
Fits the following models:
KTM
19-22 450 SX-F
19-22 450 XC-F
18.5-21.5 450 SX-F Factory Edition
Husqvarna
19-22 FC450
19-22 FX450
18.5-21.5 FC450 Rockstar Edition
Gas Gas
21-23 MC450F
21-23 EX450F
Mfg Part#
045638
Original: $1,105.53
-70%$1,105.53
$331.66Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally. In addition, they achieve a shorter overall length that is less susceptible to crash damage and complementary to their 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 their exacting specifications and is manufactured 100% at FMF's Southern California factory.
Features:
- Available in Natural Aluminum with Carbon Fiber End Cap
- Massive Power gains throughout the RPM range.
- Huge weight savings
- New RTS (Rapid Tuning System)
- FMF uses the highest quality proprietary blend stainless steel made especially to their standards.
Fits the following models:
KTM
19-22 450 SX-F
19-22 450 XC-F
18.5-21.5 450 SX-F Factory Edition
Husqvarna
19-22 FC450
19-22 FX450
18.5-21.5 FC450 Rockstar Edition
Gas Gas
21-23 MC450F
21-23 EX450F
Mfg Part#
045638





















