Yoshimura 15-23 R1 Alpha 3/4 SS/SS/CF Works Finish

Every Yoshimura exhaust product is made by hand to the highest quality standards

Championship-winning racetrack experience and Yoshimura's extensive R&D facility ensure these pipes perform

This dedication to research and development is only matched by Yoshimura's dedication to uncompromising quality standards

True performance art for your motorcycle

Designed for closed-course competition use only; not for street use

Meet noise level regulations of most worldwide race sanctioning organizations

Marked with appropriate EPA noise emissions labels

Not tested for EPA noise levels

Works Finish features a header that takes on a unique coloring after going through a heat cycle on the motorcycle

All new muffler design from Yoshimura R&D

The highest level of fit and finish due to improved production tolerances

Iconic Tri-oval muffler design heritage with a revised muffler shape for improved ground clearance

Features a tapered conical sleeve that produces a higher "GP" tone than the standard Alpha muffler

Muffler features a large diameter carbon fiber end cap and integrated, draw-formed slash cut muffler outlet

Muffler design is optimized for durability and ease of servicing