E3 DiamondFire Spark Plug E3.38

It is used in a variety of powersport applications, especially import motorcycles. E3.38 is often in used in Honda, Suzuki, Yamaha and other high RPM engines. The patented DiamondFIRE ground electrode is secured to the shell with two legs to help facilitate heat transfer, and to withstand the intense vibration of powersport engine applications.