Accel SuperStock Spiral Core wire sets are added with the traditional ACCEL combination of yellow wire and red spark plug boots, which feature color-matched wire and spark plug boots in black, blue, and red. With only 500 ohms/ft. of resistance, more ignition energy can reach the spark plug, producing a longer-lasting, hotter spark flame kernel. Provides higher performance through improved efficiency, quicker throttle response, and reduced emissions. This 8mm wire's double silicone construction is rated to 550 degrees F. Resists moisture, chemicals, and heat extremes with the help of a high-gloss wire jacket for longer life and attractive looks. The fiberglass braid adds greater pull strength and terminal retention, while the stainless steel spark plug terminals provide excellent long life, electrical conductivity, and corrosion resistance. Available for both universal and custom-fit applications in early and late model cars and trucks.