Bosch ignition leads incorporate the latest inductive core technology. The specialised construction of stainless steel wire winding wrapped around a Kevlar® reinforced aramid core, filters the RF interference by restricting the AC component. This allows DC energy to flow easily through the resistance of the spiral winding which has a lower resistance than normal resistive leads.

The overall construction of the cable core, spark plug boots and outer jacket make Bosch ignition leads suitable for use with gasoline, LPG or alternative fuel engines.