Spark Plug - NGK Iridium - Grade 7

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NGK Iridium Spark Plug - Grade 7 - Quantity 1Designed specifically for the performance enthusiast. Iridium IX® offers extreme ignitability, improved throttle response and superior anti foulingFine Iridium tip ensures high durability and a consistently stable spark Iridium alloy has an extremely high melting point, perfect for today’s high-tech, high-performance engines Outstanding acceleration, high fuel efficiency and durability Ultimate design, technology and performance. Note - Price is for 1 single spark plugFensport Tip: How to choose a sparkplug grade. (Guide Only)For NA cars usually use a grade 6 for most road applications, a grade 7 can be used in hi compression race type cars, grade 8 in extreme rev/compression cars.For Turbo Cars -Grade 6 is usually for standard cars, Grade 7 mild upgrades usually 1.2 bar boost, Grade 8 above 1.2bar, Grade 9 above 1.6Nitrous Oxide -Usually a colder grade plug is often used when using nitrous oxide.If you need help please email us. Show more