Eliminator Exhaust Pipe Fits: Yamaha YZFR1 R1M 2015-2025 (RN32 RN65) models - Lightweight upgrade. - Material : 304 Grade Stainless Steel - Fits with your standard R1 silencer or any silencer that fit your OEM catalytic converter, including our own Black Widow silencers. Same connection positions and sizes as the OEM Yamaha Catalytic converter. - Weight saving : OEM = 6.4kg vs Black Widow = 1.75kgs - Designed and made by ourselves to the highest possible standards. - Some remapping maybe necessary depending on set up. - Comes with a 2 Year Unlimited Mileage Warranty.