Yoshimura RS-12 Stainless Full Exhaust for Yamaha YZ450F 2020-2022

Yoshimura RS-12 Signature Series for 2024 Yamaha YZ450F

Yamaha’s YZ450F continues to impress riders and media alike as one of the most well-balanced, high-performing bikes in the segment. At Yoshimura, our goal was simple — to take that excellence and make it even better.

The YZ450F already delivers massive power and torque, so our engineers focused on refining how that power reaches the ground. The result? Our RS-12 Signature Series system delivers smoother, more controllable power with stronger midrange and top-end gains — all while boosting torque. The improved power transition gives riders a more predictable, connected feel, allowing you to focus on what really matters — winning.

Available in durable stainless steel with Yoshimura’s iconic aluminum muffler, this RS-12 system is the ultimate upgrade for Yamaha’s big blue.

Key Features and Benefits – 2024 YZ450F RS-12 System

Optimized Asymmetrical RS-12 Profile

• Aggressively styled and intelligently engineered for maximum muffler volume.

• Reduces sound output, enhances power, and improves clearance for tire and brake caliper.

Performance and Precision

• Just like our Factory Race systems, the RS-12 uses CNC-machined joints for a perfect 360° seal — ensuring superior fit, durability, and performance consistency.

Carbon Fiber End Cap

• Matte carbon fiber finish with Yoshimura’s signature design and detailing.

• Inner cap mounting structure enhances strength and makes servicing easier than traditional sandwich-style mounts.

PTF (Precision Taper Fit) Insert System

• Patent-pending design allows effortless installation and removal of sound inserts and spark arrestors.

Tapered Muffler Inlet Design

• Enables the system to be positioned further forward for improved weight centralization without compromising performance.

Optional Accessories

• Repack kits, sound inserts, and spark arrestors are available for all RS-12 models.

Proudly designed, developed, and manufactured in the USA — by Yoshimura R&D.

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