Overview The Street Fire Spark Plug Wires feature a low resistance conductor that's wrapped in a sleek and durable black sleeve. The terminals are covered in black boots that protect the conductor from engine heat to ensure spark delivery Features Light the fire, not your wallet with Street Fire by MSD! Silicone boots protect against high exhaust temps No cutting or crimping required - Simply "snap" on and go! Engineered and pre-terminated specifically for SBC chevrolet engines w/HEI terminals 500 Ohms/ft low-resistance for upgraded spark delivery 8mm silicone jacket & heat-resistant silicone boots work with manifold or headers Kevlar core combination & helically wound conductor suppresses EMI or "noise" Street Fire by MSD delivers consistently hotter & higher spark energy for added power, quicker throttle response and improved MPG One year warranty - Backed by the biggest name in performance ignition!