FMF Racing KTM 350-500XCF-W 20-23/HQV FE250-501 20-23/ GG EC250-350 (2021) Hex Q4 Muffler

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 resulting in a flow increase of nearly 10%. The surface of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up at higher air pressures (RPMs). The Power Bomb is a "pre-muffler" of sorts, which helps to lower the bike's sound output because it provides more sound-absorbing surface area to allow the exhaust gases to become absorbed.

This Part Fits:

Year	Make	Model	Submodel
2020-2021	Husqvarna	FE250	Base
2020-2023	Husqvarna	FE350	Base
2020-2023	Husqvarna	FE350S	Base
2020-2021,2023	Husqvarna	FE450	Base
2023	Husqvarna	FE450 Heritage	Base
2020-2022	Husqvarna	FE501	Base
2020-2023	Husqvarna	FE501S	Base
2020-2022	KTM	350 XCF-W	Base
2023	KTM	450 XCF-W	Base
2020-2022	KTM	500 XCF-W	Base