4 Stroke

FMF Racing HQV FE250 20-21/ GG EC250F 21 SS Megabomb Header/Mid Pipe - 045642

The ultimate power boost, the MegaBomb Headers improve performance along the bottom and mid-range powerband. Patented FMF technology combines the benefits of a longer header, with top end peformance of a shorter header.

FMF Racing S/S Megabomb Header/Mid Pipe - 045640

The ultimate power boost, the MegaBomb Headers improve performance along the bottom and mid-range powerband. Patented FMF technology combines the benefits of a longer header, with top end peformance of a shorter header.This Part...

FMF Racing KTM 450SXFFE 18+/XCF 19+/HQV FC450FE 18+/FX 19-22/EX450F 21-23 TI F4.1 RCT w/TI MB Hdr - 045639

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 450SXFFE 18+/XCF 19+/HQV FC450FE 18+/FX 19-22/EX450F 21-23 AL F4.1 RCT w/SS MB Hdr - 045638

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 Factory 4.1 RCT Anodized Titanium Full System w/Carbon Cap - 045637

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/Husqvarna Factory 4.1 RCT S/O Carbon - 045633

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 250SXF/XCF 19-22/HQV FC250 19-22/GGMC/EX250F 21-23 AL F4.1 RCT SO w/Carbon Cap - 045632

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 Anodized-Titanium Factory 4.1 S/O w/Carbon Cap - 045629

The Factory 4.1 exhaust system with the Powerbomb header is FMF's premier exhaust system. This system is perfect for the track or dunes, and is used by factory teams such as KTM, Epic Can-Am and Rath Racing. The Powerbomb header is made of durable...

FMF Racing KTM 350-450SXF/XCF 18-22/HQV FC/FX350-450 19-22/GGMC/EX350F-450F 21-23 AL F4.1 SO w/C Cap - 045628

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 350SXF/450SXF/FE Q4 S/A - 045627

Developed over years of championship offroad racing. Max sound output 96dB; most models below 94dB. Use with stock or FMF header. Constructed from aircraft-grade aluminum and high-strength stainless steel.This Part Fits:YearMakeModelSubmodel2021,2023Gas...

FMF Racing KTM/Husqvarna Powercore 4 Hex Muffler - 045626

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 450SXDDE 18-22/XCF 19-22/HQV FC450FE 18-22/ FX 19-22/ EX450F 21-23 TI MB Header - 045625

The ultimate power boost, the MegaBomb Headers improve performance along the bottom and mid-range powerband. Patented FMF technology combines the benefits of a longer header, with top end peformance of a shorter header.This Part...