Yoshimura R - 77 Race Series exhaust Complete LineRef : YO00138A / 1155527

Complete Exhaust Line R - 77 Race Series by Yoshimura

The R-77 Race Series complete exhaust line by Yoshimura is designed for performance with a Works finish that resembles titanium. The stainless steel collector and silencer are paired with a carbon end cap for a balance of durability and sporty aesthetics. This product, developed for competition, offers a refined sound and a weight reduction compared to the original, aimed at riders seeking a performance-oriented component.

Design and Materials

• Stainless steel collector providing corrosion resistance and thermal stability for intensive use
• Stainless steel silencer with a Works finish that resembles titanium for a racing aesthetic and good durability
• Carbon end cap delivering a polished finish for a sporty look

Usage and Performance

• Competition-derived design for a performance-oriented layout
• Refined sound offering a distinctive acoustic signature
• Weight reduction compared to the original line noticeable in handling

Practicality and Features

• DB killer not included in the Race Series version for open operation suited to the track
• Spark arrestor not present, configuration intended for use in controlled environments

Safety and Standards

• Product not road-legal and intended solely for track use
• Catalytic converter absent, which excludes compliance with road exhaust requirements

Advantages

• OEM reference 13700AJ220
• Suitable for Sport/Racing and Roadster categories

Examples of Compatible Motorcycles

• YAMAHA XSR 700 (2025)
• YAMAHA R7 700 cc (2025)
• YAMAHA MT-07 700 cc (2025)

Complete list of compatible motorcycles available in the dedicated section below