8 pc Autolite Double Platinum Spark Plugs compatible with Ford Mustang 5.4L V8 2003-2012

PLATINUM-TO-PLATINUM FIRING FOR SUPERIOR DURABILITY: Better materials to give your engine better performance. Platinum-to-platinum design greatly decreases gap erosion, reduces misfires, and provides improved durability. It's the superior-performing spark plug, providing preferred technology for DIS engines.

Super conductive Yttrium enhanced ground electrode provides superior heat transfer ENSURE RELIABILITY: Distributorless Ignition Systems (DIS) fire in both directions.The protection of platinum on both electrodes provided by Autolite Double Platinum Spark Plugs means superior performance with virtually no gap erosion over a longer life.

They are guaranteed for 5 years RELY ON RELIABLE, HIGH-QUALITY SPARK PLUGS: Autolite produces exceptional, quality spark plugs for foreign and domestic vehicles, no matter the make or model. From iridium performance to long-lasting platinum and double platinum to premium small engine plugs, Autolite Spark Plugs provide optimal durability, ignitability, and fuel efficiency TRUST IN AUTOLITE: Autolite started in 1911 as a buggy lamp manufacturer, but by the 30s, had found its niche in the manufacturing of spark plugs.

Their expertise can be seen in the sheer number of plugs made, which in 2007 was over 10 billion spark plugs. Ever innovative and committed to their customers, Autolite continues to find new designs to exceed expectations and deliver on the challenging requirements of modern engines and emissions standards