Center Electrode Tip Material: Iridium. If uncertain, reach out to us for assistance. Include the Vehicle Identification Number (VIN). Provide photos of the defect (if possible) along with an explanation of its nature.
no cons I can think of. I use these plugs in my dirt bikes and they run great ! best plugs you can buy IMO, also use them in my street rod that is super charged running E-85, replaced them at 40,000 MI just because ..