Set of 4 Genuine NGK BKR7EIX 2667 Irid ium IX High Performance Spark Plugs. Part Number: BKR7EIX. Authentic NGK Iridium IX spark plugs refresh your vehicle’s engine performance perfectly. Upgrading from standard plugs brings more stable ignition, smoother idling, better throttle response and improved fuel efficiency, giving your engine a new lease of life.
