Yoshimura RS-12 Full System - Kawasaki KX250F/KX250X 2025

Upgrade your bike with the Yoshimura RS-12 Full System. The RS-12 is the result of more than three years of development and testing with Yoshimura's factory sponsored athletes, technicians and engineers. One look and you can see it is like nothing else on the market, and the closer you get, the more details you notice, from the matte carbon fiber end cap with decal inlays to the precisely machined joints.

This system features a stainless steel header and canister with a carbon fiber end cap, built to the same standards as Yoshimura's factory race exhausts. Yoshimura builds exhaust systems for factory race efforts, and the knowledge they gain on the track goes straight into their consumer products. That cycle of development is what makes the Yoshimura name synonymous with quality and performance, delivering more power, lower sound levels and better mass centralization. Every Yoshimura system is designed and dyno tested for the specific model it fits, so you get real gains you can feel, not just more noise.

✓ Fits

• 2025 Kawasaki KX250F / KX250X

✓ Features

• Aggressive, asymmetrical RS-12 profile maximizes muffler volume, manages sound, adds power and gives more clearance for tire and brake caliper
• Precision machined joints
• Works-look matte carbon fiber end cap with intricate details
• Carbon fiber cap eases servicing compared to sandwich mounting designs
• Patent pending Precision Taper Fit (PTF) insert ring
• Tapered muffler body inlet design
• Bolt-on fit for the listed models
• For closed-course competition use only

✓ What's Included

• (1) Yoshimura RS-12 Full System
• Spark arrestor sold separately

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