Autolite High Performance Racing Non-Resistor Spark Plug

Autolite AR3911 Racing Spark Plugs are used by many professional race car drivers. These spark plugs contain an Yttrium-Enhanced Alloy, which enables up to 8 percent reduction in side wire temperature for improved durability and less pre-ignition. Autolite racing plugs are available in colder heat ranges than most plug manufacturers to support modified engines and feature a cut background electrode for improved ignitibility and faster flame kernel growth. They are also nickel plated for a long-lasting, corrosion-resistant finish. Since its inception, the Autolite brand has provided the automotive aftermarket and Original Equipment manufacturers the highest quality ignition products.

Features and Benefits:

• 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