2025

M4 Yamaha R1 2015–2026 Black GP2 Half System The M4 Black GP2 Half System for the Yamaha R1 delivers a strong balance of performance, weight reduction, and aggressive styling. Featuring a catalytic converter eliminator paired with a compact GP2...

M4 Yamaha R1 2015–2026 Black GP2 Slip-On The M4 Black GP2 Slip-On for the Yamaha R1 offers a sleek, compact design with a deep, aggressive exhaust tone. Designed to mount directly to the stock catalytic converter, this system enhances the...

M4 Yamaha R1 2015–2026 Street Slayer Half System The M4 Street Slayer Half System for the Yamaha R1 is engineered for riders seeking maximum weight savings, aggressive sound, and race-level performance. Featuring a catalytic converter eliminator...

M4 Yamaha R1 2015–2026 Black RM1 Half System The M4 Black RM1 Half System for the Yamaha R1 delivers a major upgrade in performance, weight reduction, and aggressive styling. Featuring a catalytic converter eliminator and RM1 canister, this system...

M4 Yamaha R1 2015–2026 Carbon Fiber Heat Guard The M4 Carbon Fiber Heat Guard for the Yamaha R1 is a simple yet effective upgrade that enhances the appearance of your bike’s stock exhaust system. Designed to mount directly onto the stock...

M4 Yamaha R1 2015–2026 Black RM1 Slip-On The M4 Black RM1 Slip-On for the Yamaha R1 delivers a sleek, aggressive look while enhancing your bike’s sound and style. Designed to mount directly to the stock catalytic converter, this system...