Absolutely the last set of plug wires you'll ever need! A powerful combination of Energy Core spark plug cables with pure ceramic spark plug boots so they're guaranteed to never burn, disintegrate or need replacing! Ceramic boots handle temperatures up to 2000 degrees F making them ideal for cramped engine compartments where other wires would burn. Prevents arcing from the plug boot to the header, delivering all the spark from your distributor to the sparkplugs! Patented radio-suspension metal core with pure silicone teflon-coated jacket for increased performance and mileage. Provides impressive improvements in throttle response, mileage, towing ability and power, especially when used with RV Energy Kit (92-0464).