Details
When Yoshimura developed the RS-9D Full Exhaust System, they brought in a whole crew of pro riders to ensure an amazing level of performance. With development like that, you can guarantee the RS-9D will deliver the goods on your CRF.
Built with the best level of materials available, Yoshimura designed the RS-9D to be a complete, race-ready exhaust system that increases usable power while still meeting AMA sound regulations. With the RS-9D’s truly unique design, exhaust gases go through a 3-stage header pipe, vertical exhaust splitter, parallelogram canister body, and out the tunable carbon fiber end caps. All along the way each feature of the RS-9D gives you better throttle response, more power, and quieter operation. The RS-9D even works to keep your bike’s mass centralized, not to mention the great looks it adds.
Specs:
- Specially designed aftermarket exhaust for your CRF450R or CRF250R
- Fits just like your stock exhaust system
- Meets sound check levels of AMA regulations straight out of the box
- 3-stage tapered head pipe gives better throttle response with usable delivery
- Spring mounted header for more durability
- Parallelogram canister shape increases internal volume for lower sound output
- Dual silencer setup allows mufflers to mount closer to bikes center of gravity for better handling
- Full system features dual RS-9D aluminum sleeved mufflers, carbon fiber end caps, stainless steel header, stainless steel mid pipe, installation hardware, and detailed step-by-step instructions
- Vertical exhaust divider splits gases more efficiently over stock for faster gas flow and better throttle response as well as mid and upper power
- Carbon fiber end caps house tunable insert system to fit your sound and power requirements