QuickCar has the answer to more spark energy! The new 11.5mm, under 40 ohm/ft. resistance QuickCar Sleeved Race Wire has a very quick spark energy transfer while also providing a very high Electro Magnetic (EMI) and Radio Frequency Interference (RFI) suppression. 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.The QuickCar competition sleeve is made of a silicone impregnated fiberglass braid, tightly fitted over the entire wire length adding over 1400 degrees F of total heat resistance and 24,000 volts of insulation. Oil and abrasion resistant, can be easily cleaned to maintain the original color finish. Double insulated shrink sleeves at each boot end seals, protects, and secures the boot to the wire. High temperature silicone boots provide ultimate heat protection, resisting temperatures to 600 degrees F, and the posi-snap lock stainless steel spring clip terminals provide a vibration-free connection. Available in competition red and race black for the quickest level of racing power! HEI coil end is Male type, Socket coil end is Female type.