Yoshimura 225860S520 RS-12 Exhaust System Honda CRF450R/CRF250RX - 2025

Yoshimura RS-12 System – Maximum Power & Precision for Honda CRF450R/CRF450RX - 2025 

Boost your Honda’s performance with the Yoshimura RS-12 System 225860S520, engineered specifically for the 2025 CRF450R and CRF450RX. Built from decades of factory racing development, the RS-12 increases throttle response, boosts horsepower, and refines overall engine character for elite motocross performance. Its aggressive asymmetrical profile enhances muffler volume for optimized sound control and smoother power delivery, giving riders the confidence to push harder on the track.

The Yoshimura RS-12 System also improves chassis clearance, reducing interference with the tire and brake caliper during deep compression, jumps, and tight turns. Precision-machined joints, a tapered inlet, and Yoshimura’s patent-pending Precision Taper Fit (PTF) insert ring ensure a perfectly sealed connection with long-term durability. A works-style matte carbon end cap completes the look, adding top-tier aesthetics along with easier servicing compared to traditional designs. This system is the perfect upgrade for riders who demand performance, control, and elite-level refinement.

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➡️ Top Features

• Aggressive asymmetrical RS-12 profile increases muffler volume and adds power
• Improved clearance for brake caliper and rear tire during aggressive riding
• Precision-machined joints ensure a secure, long-lasting fit
• Matte carbon fiber end cap with premium detailing for a factory race look
• Updated carbon cap design provides easier maintenance and servicing
• Patent-pending PTF insert ring improves seal integrity and installation accuracy
• Tapered inlet design enhances exhaust flow and boosts performance

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✅ Fitment

Honda

• 2025 CRF450R
• 2025 CRF450RX

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❓ Frequently Asked Questions

Q: Will the RS-12 System increase horsepower?

A: Yes. The RS-12 design maximizes exhaust flow and muffler volume, resulting in proven horsepower gains and improved throttle response.

Q: Is installation complicated?

A: No. The precision-machined joints and PTF insert ring streamline installation while ensuring a secure, perfect fit.

Q: Does the carbon fiber end cap require special care?

A: Maintenance is simple thanks to Yoshimura’s updated carbon cap design, which makes servicing faster and easier than standard sandwich-style mounts.

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👉 Ready to boost performance? Add the Yoshimura RS-12 System to your cart today and unleash elite power, control, and sound from your CRF450R or CRF450RX.

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