Dirt Bike Mufflers

FMF Racing KTM250-450SXF 15-18/XCF 16-18/EXCF 17-19/ HQV FC/FX250-450-501 16-18 Hex Q4 S/A Muffler - 045590

A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system...

FMF Racing KTM 250-450SXF 15-18 / XCF 18-22/HQV FC/FX250-450-501 16-18/FE 17-19 PC 4 Hex Muffler - 045589

The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end...

FMF Racing KTM 250-450SXF 15-18 FE/XCF 16-18/ HQV FX250-450-501 16-18 F 4.1 RCT TI Anod SO w/CRBNCAP - 045586

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...

FMF Racing KTM SXF 07-15/XCF 07-15/XCFW 08-16/SMR 07-10 TI Anod F 4.1 RCT Muffler w/R. Carbon Cap - 045561

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...

FMF Racing KTM SXF 07-15/XCF 07-15/XCFW 08-16/SMR 07-10 SS AL F 4.1 RCT Muffler w/R. Carbon Cap - 045558

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...

FMF Racing KTM SX-F 07-15/XC-F 07-15/XCF-W 08-16/SMR 07-10/HSKY FE250/350 14-16 Hex Q4 S/A Muffler - 045556

A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system...

FMF Racing KTM SX-F 07-15/XC-F 07-15/XCF-W 08-16/SMR 07-10/HSKY FE250/350 14-16 PC 4 Hex Muffler - 045553

The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end...

FMF Racing Beta 350/390/400/430/450/480/498/500/520 10-18 Hex Q4 S/A Muffler - 045522

A 4-Stroke header system that incorporates FMF's patented Power Bomb module at a precise location in the initial stage of the header system; by positioning the "Bomb" at this key point, the expansion and contraction of exhaust sonics through the system...

FMF Racing Beta 350/390/400/430/450/480/498/500/520 10-18 Powercore 4 Hex Muffler - 045521

The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end...

FMF Racing Beta 350-390 10-18 SS Powerbomb Header - 045520

The redesigned PowerBomb is a 4-stroke header that incoporates FMF's patented PowerBomb module at a precise location in the initial stage of the header, resulting in performance gains and improved flow.

FMF Racing KTM 350 EXC-F/500 EXC 12-16 SS Aluminum Factory 4.1 RCT SO Muffler - 045472

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...

FMF Racing KTM 450/525EXC/MXC/SX/XC 04-06/XC/XCW (2007) Powercore 4 Muffler - Used w/ Stock header - 045135

The PowerCore 4 was developed to increase the horsepower and torque throughout the entire power curve producing a noticeable power increase that is useable and compatible with every style of riding. Aluminum construction and stainless steel Hi-Flo end...