NGK R7438-8 (4905) - Racing Spark Plug / Sparkplug. This spark plug is a genuine UK stock item from an authorised NGK UK stockist. It is designed for racing and competition use, offering premium quality and a perfect fit. Always check this product is correct for your vehicle before purchase. We have over 10 years of experience in the automotive business and our experts are happy to answer your questions. We offer a no-leak guarantee, with replacements for any damages. We also provide free UK mainland shipping and have a 60-day returns policy. Express shipping is also available.