WARNING : Cancer and Reproductive Harm - www.P65Warnings.ca.gov. FOR CLOSED COURSE COMPETITION USE ONLY. NOT INTENDED FOR STREET USE. THE SALE, USE, OR INSTALLATION OF THIS PRODUCT MAY ALSO BE ILLEGAL NATIONWIDE UNDER THE FEDERAL CLEAN AIR ACT (42 U.S.C. § 7522(A)(3)Recommended for use with 2011-2014 Mustang GT 5.0L Coyote Supercharger Kit M-6066-MGT525D and M-6066-MGT624D
One heat range colder than the stock 2011-2018 Mustang GT 5.0L 4V Ti-VCT engine spark plugs
Used on the 2016 Cobra Jet engine
Similar performance to M-12405-M50 but more robust construction for race applications
0.035 plug gap for supercharged applications recommended