Stainless Works 2015-16 Mustang GT Headers 1-7/8in Primaries 3in High-Flow Cats

2015-16 Mustang GT headers with 1-7/8″ primary tubes, 3″ diameter lead pipes and high flow catalytic converters designed to mate to Stainless Works exhaust. Tig welded 304 stainless steel headers with 3/8″ thick flanges and 3″ diameter slip fit collectors with merge spikes.This system is designed to work with Stainless Works 2015 Mustang performance connect exhausts, which maintain a full 3″ diameter, and does not neck-down like the factory system. Superior performance with a lifetime guarantee.