Yoshimura RS-4 Signature Stainless Full Exhaust System w/Aluminum Sleeve/Carbon End Cap for KTM 450SX-F/Husqvarna 450/FX450 16-18

Yoshimura Signature Series RS-4 exhaust systems feature a pentagonal-shaped muffler sleeve and aluminum mounting bracket. They are a two-stage stepped baffle design with considerable weight reduction over your stock exhaust system. Every RS-4 exhaust system comes with all the necessary hardware included for an easy installation. Options include material and finish—and single or dual configuration. Order the model recommended for your bike application.