E3 Spark Plugs E3.66 Premium Automotive Spark Plug w/ DiamondFIRE Technology Pack of 1
- Automotive spark plug that fits a variety of domestic applications, designed to increase power, reduce fuel consumption, and improve hydrocarbon....
- E3's patented DiamondFIRE edge-to-edge electrode provides maximum performance with increased efficiency, and a faster more complete burn.
- Designed with colder heat ranges to enable performance modifications, and contains Yttrium-enhanced alloy for a reduction in side wire temperature for....
- Includes one (1) E3.66 spark plug with a limited lifetime warranty.
- Primarily used in a wide variety of automotive and truck applications.