NGK Iridium IX Spark Plugs, BR9EIX #3981 4/Pack

Designed specifically for the performance enthusiast. Iridium IX offers extreme ignitability, improved throttle response and superior anti-fouling.

Fine-tipped iridium-center electrode ensures high durability and consistently stable spark

Iridium alloy with an extremely high melting point

Tapered ground electrode maximizes fuel burn

Outstanding acceleration, high fuel efficiency and durability

Ultimate design, technology and performance

Sold in standard pack only