Magnecor s kv85 competition (8.5mm) and r-100 racing (10mm) ignition cables feature magnecor s exclusive 2.5mm high capacity metallic inductance emi suppressed conductor consisting of stainless steel wire precisely wound at 200 turns per inch over a ferrimagnetic core. The insulating jacket is made entirely of magnecor s exclusive tc-1500-hs high strength aerospace grade silicone rubber, and its single layer construction will prolong the jacket s insulating ability by conducting extreme heat away from hot-spots that occur near over-the-limit heat sources.