The Granatelli MPG Series Coil Packs are have a patented design that has Zero ohms of resistance which improves spark to increase miles per gallon up to 15%, increase horsepower and torque, allows easier engine starts, and is custom tailored for your vehicle for easy installation. They include coil on plug connectors and all necessary hardware. With today's outrageous fuel costs, this product will pay for itself in no time!