This Stage 1 Oval Slip-On Muffler Kit combines innovative construction techniques with advanced engineering to infuse your bike with custom style and deliver a powerful, throaty exhaust note. The body of the muffler is hydro-formed into a complex geometry that gives your muffler a unique, appealing look. The muffler tip is cast into a distinctive oval shape that’s used exclusively on this muffler. There are also Indian Motorcycle script logos on the mufflers. The muscular exhaust is tuned to amplify and maximize the low, deep rumble of the exhaust note. The rich sound and distinct style make this a one-of-a-kind, must-have muffler kit. INCLUDES : Black Right Hand and Left Hand Slip on Mufflers, Installation Instructions, and Calibration Card FITMENT : 2021 Vintage Dark Horse 2021 Roadmaster Limited 2020-2021, 2017-2018 Chieftain Elite 2020-2021 Roadmaster Dark Horse 2020-2021 Indian Vintage 2020-2021 Challenger Limited 2020-2021 Challenger Dark Horse 2020-2021 Challenger 2020, 2018 Roadmaster Elite 2020 Indian Chief Dark Horse 2018-2021 Springfield Dark Horse 2018-2020 Chieftain Classic 2018, 2016 Chief 2017-2021 Chieftain Limited 2017-2019 Chief Dark Horse 2017-2018 Roadmaster Classic 2016-2021 Springfield 2016-2021 Chieftain Dark Horse 2015-2021 Roadmaster 2014-2021 Chieftain 2014-2019 Chief Vintage 2014-2018 Chief Classic