Enhance the performance of your RS1 with Energycoil. A complete plug and play system that replaces your factory coils and plug wires with our high performance coil on plug technology. With Energycoil you get increased throttle response combined with a smoother idle that you can feel and hear. You will notice mid range acceleration and power increases all the way to the limiter. Eliminate rpm fluctuations and get just smooth steady power at any rpm. By having a hotter longer duration spark it ensures a more complete burn that equals increased performance, improved fuel mileage, and a cleaner burn for improved emissions.