Autolite AR103-4PK High Performance Racing Resistor Spark Plug, Pack of 4

AUTOLITE AR103-4PK MAXIMUM PERFORMANCE: Replacement racing spark plugs are used by many professional car drivers. Our high performance spark plugs deliver the action-pack performance that professional is looking for to reach maximum performance, EFFICIENCY: This automotive replacement spark plug has anti-corrosive nickel-plating that prevents rusting better than black oxide, allowing the plug to maintain its durability and efficiency, IMPROVED DURABILITY: Autolite Racing Spark Plugs contains Yttrium-enhanced alloy to enable up to 8% reduction inside wire temperature for improved durability and less pre-ignition. Designed with colder heat ranges, CONSTRUCTION: This automotive replacement spark plug features a cut background electrode for improved ignitability of flame kernel and better heat transfer. Coated in an anti-corrosive nickel plating to prevent rusting, AUTOLITE ADVANTAGE: Autolite Spark Plugs has been producing spark plugs since 1936, making it one of the most trusted and reliable brands for your OE replacement spark plugs needs.