Granatelli's Ford Coil-On-Plug Connectors have zero ohms of resistance, which improves power, gas mileage, and throttle response without voiding the factory warranty. These connectors are direct OE replacements that maintain very high noise suppression (i.e. no radio interference). Solid stainless steel cable with a unique EMI/RFI suppression ring works great with fuel injection and stereos. Power to the spark plug is increased up to 400% over stock. These coil-on-plug connectors are the only true solid stainless steel core wire that works with today's computer-dependent engines and all race cars.