RINEHART 4″ INDIAN CHIEF SLIP-ON MUFFLERS. 4” Slip-On Exhaust from Rinehart Racing designed specifically for the 2022-Later Chief and Super Chief models.. Deep, warm tone with a punch that perfectly matches the aggressive styling of the bike. Highest quality construction in the industry, backed by our Limited Lifetime Warranty. Sleek, low profile end cap for clean lines and a perfect fit. Available in Chrome or Black with Chrome or Black low profile end caps..