2011-14 Mustang GT headers with 1-7/8″ primary tubes, 3″ X-Pipe and 3″ dia offroad lead pipes 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.
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