MSD Iridium Spark Plugs Tutorial Overview http://www.jegs.com/p/MSD-Ignition/MSD-Iridium-Spark-Plugs/3007460/10002/-1 Features: Optimized for High Power Engines Iridium Strength Yttrium/Copper Core ------------------------------------------------------------------------------------------------ Follow JEGS High Performance for the latest Racing news, videos, pictures and content! Home Website: http://www.jegs.com SUBSCRIBE to our: YouTube: https://www.youtube.com/user/JEGSHighPerformance Facebook: https://www.facebook.com/Jegsperformance Twitter: https://twitter.com/JEGSPerformance Google+: https://plus.google.com/100400953228950622869/posts Pinterest: https://www.pinterest.com/jegsperformance/ Instagram: https://instagram.com/jegsperformance/ Tumblr: https://www.tumblr.com/blog/jegsperformance A family-owned company with a rich racing heritage and a passion for muscle cars and street rods. We have over 55 years of experience delivering the best high performance auto parts from the best brands. JEGS has a knowledgeable technical support staff, outstanding customer service, and 100% satisfaction guarantee. Our warehouse is filled with millions of name brand auto parts ready for same-day shipping. • Free Shipping & Handling* On orders $30 and over - More Info • The Lowest Prices! If you find a lower price on the same item, change the price and buy • Order By 11pm EST for Same Day Shipping! Delivered fast to your door • Millions of Name Brand Products in Stock! Ready to assist you around the clock 24/7 http://www.jegs.com