2015-18 Mustang GT 5.0L long tube headers. Factory Connect. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Starting with a CNC cut 3/8" thick flanges into 2" diameter primaries, 3" slip-fit collectors with merge spike, then fitting into 3" high-flow cats. That connects to your factory exhaust. Headers are fully TIG welded and back purged. Mill finish, These, are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.. Stainless Works, M152HCAT, 2015-18 Mustang 5.0L headers. High-flow cats, 2" primaries, 3/8" flange, 304 stainless steel, 3" slip-fit collectors, CNC mandrel bent, 304 Stainless Steel, O2 bungs, Mill Finish, TIG welded, Lifetime Warranty.. 2015-20 Mustang GT 5.0L Factory Connect, Stainless Steel headers. Starting with our durable 3/8" thick flanges into 2" diameter primaries, flows into 3" slip-fit collectors with merge spike, then fitting into 3" High-flow cats.. Stainless Works, 2015-18 Ford Mustang GT 5.0L headers 2" primaries, Catted.. Stainless Works 15-18 Ford Mustang GT Factory Connect 2in Catted Headers. Stainless Works Headers 2" With Catted Leads Factory Connect. Stainless Works 2015-20 Mustang Catted. 2015 thru 2020 Ford Mustang GT 5.0L. Exhaust Header Pipe Kit. Exhaust System. Header Kit

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