This is the NGK PZFR7G-G (4253) - Laser Platinum Spark Plug / Sparkplug - Dual Platinum Electrodes.
Laser Platinum spark plugs provide high ignitability and longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.
NGK is the brand leader in the UK spark plug market and are the world's biggest supplier to many major car manufacturers. Each and every one of their products are designed to meet the most rigorous standards and are the professionals' choice because of their quality and technical excellence. Their plugs can be found in use by teams in F1, WRC and MotoGP. Put simply, NGK genuine spark plugs are the workhorse at the heart of smooth-running engines around the world.
NGK Platinum Laser Spark Plugs are manufactured to improve the performance of the ignition system. They are constructed from durable material which is corrosion and abrasion resistant. This spark plug includes laser welded platinum tip on the center electrode and a platinum tip on the ground electrode. It features a taper cut which reduces the voltage necessary and provides better throttle response. This spark plug improves efficiency and allows smoother idling.