All kits consist of matched ACCEL custom fit wire set, ACCEL distributor cap and rotor and get the ACCEL U-Groove spark plugs, free. Kits include 8mm custom fit extreme 9000 wire set with heat reflective coat sparkplug boots rated at 1200 degrees Fahrenheit, and ferro-spiral core. Some in-line 6 cylinder applications use 5000 series wire set where extreme heat is not a problem. ACCEL uses the finest distributor cap and rotors available, precision molded in impact resistance high dielectric strength compounds. Most applications in tan with brass or copper inserts and stainless steel contact springs. Renowned, race-proven U-groove copper core spark plugs are used to maximize burn efficiency for improved performance and reduced emissions. Kits are designated with the suffix HP are available with ACCEL Shorty header spark plugs for added plug clearance on vehicles equipped with headers.