Special High-performance ignition wire set for older models which features 8 mm silicone jackets with wire core. This ready-to-install assembly has plug boots of the same color as the leads.

High-performance ignition wire sets come as ready-to-install assemblies for the respective models. The plug boots feature the same color as the leads. Spiro-Pro cables feature carbon fibre cores and are developed to work with both points and electronic ignition.

Braided steel silicon spark plug wire sets with carbon suppression core are developed to work with both points and electronic ignition.

With suppression cores for models with electronic ignition.

Maximum spark energy to the plugs without diminishing or suppressing. Ferro-Spiral core material with fiberglass braiding and silicone jacket provide a peak ignition output. Work with points and electronic ignition systems.

Feature a thick 8mm silicone jacket and low 500 Ohms/ft. resistance Ferro-Spiral core material. They deliver up to 5 times more peak energy than competitive products, even at high temperatures over 260° C. The ultra-strong Aramid core and fiberglass braiding provide resistance to vibration and “wire stretch” to make a wire set that is durable and reliable. These are the only cables which are compatible with Twin Cam models with Delphi ignition/fuel injection systems.