17-20 CRF450R/RX RS-9T FS SS/SS/CF TIPS
- Yoshimura has been working tirelessly on development with American Honda HRC's engineers to achieve maximum performance and mass centralization, to optimize rider usability
- Yoshimura achieved all this by moving the RS-9T mufflers forward in order to tuck in under the side number plates
- Dyno and track tested by Honda R&D in Japan, American Honda MX Team, and HRC All Japan MX Racing Team
- 3-stage stainless steel header provides broader overall range of power and throttle response
- New stainless steel tail pipe divider creates smoother exhaust flow and better velocity to the right and left tail pipe
- Larger RS-9T core creates improved throttle response, and power in mid and top end
- New RS-9T mufflers have more volume than stock to provide a decrease in overall dB noise level
- Works with or without Honda's new optional electric start system
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