QuickCar has the answer to more spark energy, they are offering the best spark plug wires available. These 8mm wires feature heat sleeves for a 11.5mm total O.D., and is under 40 ohm/ft. resistance. QuickCar Sleeved Race Wires have a very quick spark energy transfer while also providing a very high Electro Magnetic (EMI) and Radio Frequency Interference (RFI) suppression. They are constructed using two layers of the purest silicone available, the Kevlar core center and nickel-copper alloy wound conductor provides a very flexible, high-tensile strength spark plug wire that improves engine horsepower, torque, and fuel efficiency. Additional coil wire lengths are available separately.