2015-21 Mustang GT Stainless Works Headers 1-7/8" With Catted Leads Performance Connect

2015-21 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.