
Ford Performance 5.0L Mustang Cold Spark Plug Set

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