Champion Spark Plugs can provide spark for a weekend street stock warrior or a 400+ cubic inch winged Sprint Car. Champion uses an exclusive chromium-nickel ground electrode for superior erosion resistance and extended life. Additionally, the copper core center electrode enhances thermal capacity for peak performance at all engine speeds. Applications available for virtually any combination.Pit Stop USA offers Champion 791 Racing Spark Plug C57YC at low everyday prices. Be sure to check out all of our products from Champion Spark Plugs including Champion Racing Spark Plugs.