2011-14 Mustang GT headers with 1-7/8" primary tubes, 3" X-Pipe, 3" dia
lead pipes and high flow catalytic converters that mate to the factory
connection point. Tig welded 304 SS headers with 3/8" thick flanges and
3" dia slip fit collectors with merge spikes. This system replaces the
factory manifolds, catalytic converters and H-Pipe with a superior
performing lifetime guaranteed bolt-on system.