NGK (7043) R0045J-11 Racing Spark Plug, Pack of 1

Product Review

NGK Racing Surface Discharge Plugs may be necessary in high compression applications or when valve/piston clearance does not allow for a ground strap and a retracted tip plug is not appropriate due to insulator/tip exposure. While they are nearly immune to pre-ignition, they can be susceptible to fouling when used in colder applications. NGK surface gap plugs are hand made in Japan and constructed to withstand the most extreme racing environments.