YOSHIMURA offers you this muffler called RS4 that fits on the original manifold of your HUSQVARNA FC 450cc, HUSQVARNA FE 501cc, HUSQVARNA FX 450cc, KTM SXF 450cc, KTM EXCF 500cc. This replacement muffler has an aluminum shell with a high end real carbon end cap. The look is really great. The silencer has a double chamber system inside. Allowing a better sound without breaking the ears. As usual at YOSHIMURA the quality and finish is exemplary. Changing the silencer on your motocross bike will increase the performance by 1hp and 0.7nm of torque. Contractual photo to come.

Fits on :

HUSQVARNA FC 450 450 2018

HUSQVARNA FC 450 450 2017

HUSQVARNA FC 450 450 2016

HUSQVARNA FE 501 501 2019

HUSQVARNA FE 501 501 2018

HUSQVARNA FE 501 501 2017

HUSQVARNA FX 450 450 2018

HUSQVARNA FX 450 450 2017

KTM 450 SX-F 450 2018

KTM 450 SX-F 450 2017

KTM 450 SX-F 450 2016

KTM 500 EXC-F 500 2019

KTM 500 EXC-F 500 2018

KTM 500 EXC-F 500 2017

KTM 500 EXC-F SIX DAYS 500 2019

KTM 500 EXC-F SIX DAYS 500 2018

KTM 500 EXC-F SIX DAYS 500 2017