The S1R exhaust is the state-of-the-art product from Two Brothers Racing. The system features carbon fiber highlighted by a natural finished Aluminum outlet and stamped spring-mounted inlet for ultimate durability.

The S1R cat-eliminating exhaust from Two Brothers Racing showcases a race design while increasing all-around performance. All of our carbon parts are made with a high temp aerospace grade epoxy resin. The carbon fabric is made with a 33 million modulus carbon tow then impregnated with the high temperature resin under very tight tolerances.

• Aerospace high-temp carbon fiber
• Teflon coated magnesium end-cap
• Stamped spring-fit inlet
• Aluminum CNC Machined outlet
• Rubber-lined styled mount
• Spiral-wound perforated core
• Accepts sound reduction tips

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2015-2024 Yamaha R1 / R1M / R1S Two Brothers Racing S1R Slip On Exhaust System - Carbon Fiber Canister (005-4260405-S1) 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024