2015-17 Mustang GT headers with 1-7/8" primary tubes, 3" diameter lead pipes and high flow catalytic converters that mate to the factory connection point. Tig welded 304 stainless steel headers with 3/8" thick flanges and 3" diameter slip fit collectors with merge spikes.
This system replaces the factory manifolds, catalytic converters with a superior performing lifetime guaranteed bolt-on system.
***NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. 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)).