BLOW PERFORMANCE EXHAUSTS FOR EVOLUTION BIG TWIN & TWIN CAM | Dyna | FX | FXR | Softail | Touring | Trike

Fits 1984-2000 Evolution Big Twin and 1999-2017 Twin Cam, Ceramic black Kutbak exhaust system with ceramic black heat shields

Blow Performance three-step exhaust systems are designed to work with the exhaust inertia pulse and give a broad power band on 80CI – 131CI Evolution Big Twin and Twin Cam engines. Three-step headers are not be confused with straight drag pipes. These are true High Performance exhaust systems for closed course competition. Blow Performance encourages having your engine dyno tuned after installation by a professional dyno tuner for maximum performance.