As soon as Yoshimura got their hands on the CRF450X they rolled up our sleeves and went to work. The goal - improve power in every area we could while keeping the goal making the new 450X easier to ride in a variety of off-road conditions. Yoshimura tailored the power delivery to give the machine more usable rideablity. Power is up and weight is down for a win-win situation for the new red off-road machine.
In the Mid 90's Yoshimura didn't go to the dirt; the dirt came to Yoshimura. Enduro Series systems are an evolution of Yoshimura's early off road efforts crafting off-road exhaust systems. The Enduro Series are all equipped with USFS-approved spark arrestor, forest-friendly noise levels, and are tailpipe emissions compliant.
If your serious - it's only Yoshimura. Proudly made in the USA!
Benefits for the 2019 CRF450X Yoshimura RS-4 system include: