Yoshimura RS-9T Slip-On Exhaust for Honda Motorcycles – Dual Mufflers

Yoshimura RS-9T Signature Series Slip-On Exhaust System for 2017 Honda CRF450R/RX
Elevate your motocross and off-road riding experience with Yoshimura’s RS-9T exhaust system—engineered specifically for Honda’s 2017 CRF450R and CRF450RX models. Designed in collaboration with American Honda HRC engineers, this system delivers unmatched performance while prioritizing rider usability and mass centralization.

Engineered for Power & Precision
The RS-9T’s innovative dual tapered muffler is positioned forward to tuck neatly under the side number plates, lowering the center of gravity for agile handling. Dyno-tested by Honda R&D in Japan and validated by top teams like the American Honda MX and HRC All Japan MX Racing squads, this exhaust maximizes track-ready power across a broader RPM range. A 3-stage header improves throttle response, while a new tailpipe divider ensures smoother exhaust flow for balanced power delivery to both sides of the muffler.

Key Advantages Over Stock & Competitors
– Quieter Performance: Increased muffler volume reduces noise levels without sacrificing power—ideal for riders balancing track use with street legality.
– Electric Start Compatibility: Works seamlessly with or without Honda’s optional electric start system.
– Weight Distribution: Forward-mounted design enhances mass centralization for sharper cornering and stability.
– Mid-to-Top End Gains: A larger core boosts high-RPM performance, perfect for aggressive acceleration on motocross tracks or rugged off-road trails.

Versatile Installation Options
Choose between a slip-on kit for a quick power upgrade or a full system for comprehensive performance optimization. Whether you’re racing professionally or conquering weekend trails, the RS-9T combines race-proven engineering with practicality—making it an essential upgrade for serious CRF450R/RX owners.

Outperform stock exhausts and rival brands with Yoshimura’s signature blend of innovation and precision.

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