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Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Built to last
1992-2023 KTM 250 SX
2019 Yamaha MXT9 NIKEN
Oxygen sensor ports allow the use of wide band or stock O2 sensors
Has not been tested for EPA noise compliance
Two Brothers Racing 005-4470407-S1B S1-R Slip-On - Carbon Fiber Muffler (Black) manuals Built to lastMarketing Color: Black Material: Carbon Fiber The S1R exhaust is a 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 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
