An industry–leading manufacturer of high tech electronics for street, strip and off road use, Jacobs new catalog features ignition coils, ignition amplifiers, spark plug wires and nitrous controls. One of Jacobs unique products is the Ceramic Spark Plug Boots which are ideal for severe duty applications like towing, motor homes, and road racing. Unlike ordinary spark plug boots, Jacobs Ceramic Boots are the only ones on the market that can withstand temperatures up to 2,000 degrees Farenheit – temperatures that would melt ordinary spark plug boots.