Replacement Low-Volume Insert Kit for RS-12 silencers. Non-Spark Arrested. Available as optional kit on applications requiring different sound restrictions. Decibel reduction depends on application.

Aggressive, intelligently designed, tapered asymmetrical RS-12 profile allows maximized silencer volume that helps manage sound, reduce weight and add power. Engineered for the demands of the off-road world.

The #1 exhaust in Supercross and Motocross that powered Chase Sexton to the 2023 450 Supercross title, and Jett Lawrence to the 2023 450 Motocross SMX title and perfect season!

The Akrapovic Evolution Line system is the pinnacle of exhaust engineering. The unique shape muffler improves your bike's appearance. The 0.8mm hydroformed titanium header gives maximum weight saving, whilst giving maximum power, and maximum torque.

Developed over a year in close collaboration with Honda and MXGP World Champion Tim Gajser, no stone has been left unturned in the effort to innovate and create the best exhaust system available. Yoshimura RS-12 and 20210 Honda CRF450 - precision tuned.

In the never ending pursuit to craft the very best exhaust system, Yoshimura introduces the latest titanium RS-12 system for the 2023 Honda CRF450R.