Two Brothers Racing 005-4470407-S1B S1-R Slip-On - Carbon Fiber Muffler (Black) manuals Has not been tested for

Has not been tested for EPA noise compliance

Oxygen sensor ports allow the use of wide band or stock O2 sensors

1992-2023 KTM 250 SX

2004 Harley Davidson FXDWGI Dyna Wide Glide

2018 Arctic Cat M 8000 Sno Pro 162 Early Build

Two Brothers Racing 005-4470407-S1B S1-R Slip-On - Carbon Fiber Muffler (Black) manuals Has not been tested forMarketing 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