Rinehart Slimline Duals Adapter Kit For Harley Trike Use this kit in conjunction with Rinehart's Slimline Duals to get the head pipe in your Trike properly. Don't skimp out on the performance with staying with your stock header and allow your bike to breath much better while gaining more torque and ponies. Features When installing Slimline Duals on 2009-2016 Triglide, use appropriate Slimline Dual full system for 2009-2016 HD Touring and Slimline Trike Conversion kit When installing Slimline Duals on 2015-2016 Freewheeler, use 2009-2016 Slimline Dual Header kit, Slimline Trike Conversion kit, and Freewheeler Slip on mufflers When installing Slimline Duals on 2017 Triglide, use 2017 Slimline Dual Header kit, Slimline Trike Conversion kit, and 1995-2016 Slip on mufflers. MotoPro45 mufflers not recommended due to potential ground clearance issues When installing Slimline Duals on 2017 Freewheeler, use 2017 Slimline Dual Header kit, Slimline Trike Conversion kit, and Freewheeler Slip on mufflers