An easy, low-cost method to custom tune your exhaust systems
Vance & Hines SS2-R, Supersport and Drag Race exhaust systems accept Tune Kits
Just remove the exhaust system tail section and slip one of three reducers into the collectorthats it
Boosts mid-range power and improves throttle response
Kit includes 21/4, 21/8 and 2 diameter reducers
