The S1R exhaust is a state-of-the-art product from Two Brothers Racing. The system features carbon fiber, aluminum or stainless steel highlighted by a natural finished aluminum or stainless steel outlet and stamped spring-mounted inlet for ultimate durability.
The S1R exhaust from Two Brothers Racing showcases a race design while increasing all-around performance.
Two Brothers S1R stainless off-road exhaust systems come complete with a U.S. Forestry Service approved removable screen type spark arrestor.
Comes with all necessary hardware, tubing, and instructions for installation.
Two Brothers Carbon: All of the Two Brothers 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.
Note: Two Brothers Racing Products are for closed course competition use ONLY. Not intended for street use.
A: All products sold on MotoSport.com are for US models only. We unfortunately do not have product fitment or specifications for non-us models. Any street legal products sold by MotoSport.com are designed for US emissions and laws.