ACCEL's® ready-to-install custom fit wire sets provide improved performance, both electrically and mechanically. For street or racetrack use, ACCEL® 8.8 provides the ultimate in ignition wire performance. Extra-thick silicone jacket covers strong fiberglass braid that covers another layer o premium silicone. All of this covers our high capacity conductors - either STAINLESS STEEL/SILVER-PLATED combination, which improves electrical conductivity and mechanical strength, or GRAPHITE RFI SUPPRESSION for use on Harleys with electronic ignition to prevent damage to the control modules. At the plug end, positive locking stainless steel terminals lock onto the spark plug to assure a secure installation. High dielectric strength silicone spark plug boots provide excellent insulation, preventing arcing to the cylinder heads. At the coil end, high conductivity brass coil terminals and leak proof, weatherproof boots are factory installed to assure easy installation. The custom fit 8.8 wire sets are available in either yellow or black.