ACCEL Stealth SuperCoils hide all ignition wiring in the head of the coil pack, which eliminates the appearance of spark plug wires, and provide quicker engine starting and improved throttle response. Mounting directly to the spark plug, the Stealth SuperCoils feature a cross-functional aluminum cast cover that creates a heat sink, redirecting the heat away from the cylinder heads. The high quality Delphi connectors allow the installation process to be simple, and the coil itself boasts a faster rise time and higher voltage than the traditional system, allowing the plugs to receive maximum spark energy and perform to their potential. The SuperCoils fit all fuel-injected Harley-Davidson Softail and Touring models from 1999-2013 and are available in both "natural" cast aluminum and black finishes. The ACCEL Stealth SuperCoils are also covered by ACCEL’s lifetime warranty.