Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance, and longevity of the spark plug
Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression
Patented Ultraseal coated shell for rust prevention
Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression
Patented Ultraseal coated shell for rust prevention