Replacement racing spark plug used by many professional car drivers;Specifically designed with colder heat ranges than the factory plug to handle added power;Contains an Yttrium-enhanced alloy to enable up to 8% reduction in sidewire temperature for improved durability and less pre-ignition;Features cut back ground electrode for improved ignitability of flame kernel;Coated in an anti-corrosive nickel plating to prevent rusting

• Autolite AR103 High Performance Racing Resistor Spark Plug

Autolite AR103 High Performance Racing Resistor Spark PlugAutolite