Blue Max™ Solid Core Hard Core Performance Blue Max™ Solid Core combines state-of-the-art engineering with the finest workmanship and quality control available! Our Solid Core Sets are pre-terminated at the spark plug end and include enough wire, boots and terminals so you can complete the distributor/magneto end. Super-High-Performance Wire for Racing Only Engineered for magneto and other ignitions that do not require electro-magnetic interference (EMI) suppression Combination silver-plated copper and stainless steel "solid core" provides maximum conductivity and strength Each wire individually tested for continuity after termination to ensure race-ready performance Engineered for Maximum Spark Energy! HIGH TENSILE STRENGTH HIGHEST CONDUCTIVITY HIGHEST DIELECTRIC STRENGTH Central core of corrosion-resistant stainless steel provides high strength to eliminate wire breakage. Silver plated, low-oxygen copper provides maximum conductivity for peak spark energy. Premium silicone jacket over special EPDM (Ethylene Propylene Diene Monomer) for best insulation performance.