Slip-Ons

Built to create smooth, tractable power to help in the toughest conditionsSmooth power curve throughout the RPM rangeLarger diameter titanium canister for more tunability and longer lasting packing lifeThe EXTREME silencer delivers low decibel...

The measure which others aim forWith their lightweight titanium or extruded aluminum oval canisters mated to a perforated core, these silencers are above the competition KTM -- 300 XC-W TPI -- (2020, 2021, 2022); KTM -- 300 XC TPI -- (2020, 2021, 2022);...

Built to provide excellent power for today?s tracks geared toward 4-stroke machinesSmooth power curve throughout the RPM rangeLarge diameter canister for more tenability and longer lasting packing lifeDelivers a crisp, notable soundOptimally designed to...

Developed over years of championship off-road racingTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb header Yamaha -- YFZ 450 4x2 -- (2007, 2006, 2004, 2005,...

The Q4 employs intricate chambers, baffles and proprietary multistage packing materialWith the Q4 you don?t need to hear the power, just feel the power!Less sound equals more groundPower gains throughout the entire rpm rangeSpark arrestor includedPounds...

The Q4 employs intricate chambers, baffles and proprietary multistage packing materialWith the Q4 you don?t need to hear the power, just feel the power!Less sound equals more groundPower gains throughout the entire rpm rangeSpark arrestor includedPounds...

The Q4 employs intricate chambers, baffles and proprietary multistage packing materialWith the Q4 you don?t need to hear the power, just feel the power!Less sound equals more groundPower gains throughout the entire rpm rangeSpark arrestor includedPounds...

Q4 Hex S/A Slip-On Muffler - Kx 250 042410 Kawasaki -- KX 250 -- (2025)

Developed over years of championship off-road racingTwin-stage core design for lower sound output and extended life of packing materialComes standard with spark arrestorFits stock and PowerBomb header Yamaha -- YFZ 450R 4x2 -- (2016, 2015, 2012, 2014,...

Fmf Q4 Hex Slip-On Muffler 042393 Kawasaki -- KX 250 -- (2021, 2022, 2023, 2024); Kawasaki -- KX 250 X -- (2022, 2021)

The Q4 employs intricate chambers, baffles and proprietary multistage packing materialWith the Q4 you don?t need to hear the power, just feel the power!Less sound equals more groundPower gains throughout the entire rpm rangeSpark arrestor includedPounds...

The Q series features advanced engineering to precisely locate baffles and chambers to absorb soundLess mass to enhance power-to-weight ratioQuiet power with minimal sacrifice for performanceDeveloped over years of championship off-road racingTwin-stage...