ACCEL 4038 SuperStock 8mm 4000 Series Yellow Copper Spark Plug Wire Set Upgrades tired Original Equipment wires for high performance street use Universal design for V8 engines 8mm spiral core wires feature 450 degree rated silicone jackets in classic ACCEL yellow Rugged tightly woven fiberglass braids guard against current leakage and oil and solvent damage Comes with both male HEI style and female socket style distributor boots and straight plug boots