Granatelli MPG Plus 8mm spark plug wires will significantly increase horsepower, torque, and fuel mileage. They feature patented ferrite rings to suppress RFI noise and 0 ohm resistance to allow full coil power to reach each plug. They are OBD-II safe and suitable for modern EFI applications, emit no stereo noise, and have stainless steel cores & spark plug terminals with 500° silicone jackets & boots. Click on More Info below for specific applications.