Brisk DR15ZC Racing Plugs 4 Pack NASACAR YOUTH SERIES USAC25 QMA POWRI

Brisk DR15ZC Multi spark , spark plug. This plug is the best choice for power in GX120 and 160 engines used in Quarter Midget racing. NASCAR YOUTH SERIES, USAC25, QMA and POWRI legal. These plugs should be changed when carbon builds up to prevent fouling.  This is for a 4 pack.