For those who do not want mixing and matching parts, Accel offers a balanced performance ignition system that is designed to make the most horsepower. The Accel Super System is a complete bolt-on system that is designed to work together to produce an adjustable ignition that out-performs others. The Super System includes the adjustable Ignition Module, the Single Fire Super Coil, Accel High-Performance U-groove spark plugs, and Accel black 8.8 performance spark plug wires. The system can be installed easily and adjusted simply by switches on the module to produce the performance to match your machine. Fits Shovelhead 1970-1984 and Evolution Big Twin 1984-1999. All parts are also available individually.