More Voltage = More Spark = More Power! An exhaust charge contaminated with unspent fuel is wasted horsepower. Most stock coils don't provide the voltage necessary to completely burn all of the fuel in the combustion chamber. With up to 55,000 volts, Hypertech Power Coils increase horsepower across the board, improve acceleration and improve fuel economy! Kits feature a high dielectric cap with bronze terminals, rotor and Power Coil.