Video Side Info » Granatelli Motor Sports Ford Ignition Coils

Granatelli Motor Sports coils increase power to the spark plug up to 400% over stock and are designed to be a direct OEM replacement. They even exceed the OEM specifications; they are OBD-II computer safe, and feature silicone magnetic steel core technology. By optimizing winding process and material diameters, Granatelli Motor Sports was able to double the factory coil output. Brass secondary contacts assure the maximum output from the coil reaches the plug every time. Another great feature, the bodies, brackets and towers are all integrally molded into one unit with brass inserts to relieve compression pressure caused when tighten down the coils.