E3 Spark Plug E3.40 Automotive Spark Plug， Pack of 1[Product Information]- Near elimination of performance inhibiting carbon deposits， dramatically longer plug life and a 5-year/100，000 mile limited warranty
- DiamondFire electrode technology that creates a superior spark and resulting flame front extending further into the cylinder， producing more localized pressure
- Significant potential power increase: > 6% to 12% (depending on engine class)
- Significant potential fuel efficiency improvement: > 4% to 13% (depending on engine class)
- Drastic potential emissions reduction when used in 2 and 4-stroke engines (after 50 hours): 58% CO emissions reduction， 42% hydrocarbon reduction
