2015-18 Mustang GT 5.0L long tube headers. Performance Connect, Unholy Union. 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. Extended leads are built to fit MBRP and Corsa as well as Stainless Works catback systems. The ultimate freedom in aftermarket connections. 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, M152H3CATLG, 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 Performance 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 15-18 Ford Mustang GT Aftermarket Connect 2in Catted Headers. Stainless Works, 2015-18 Ford Mustang GT 5.0L headers 2" primaries, Catted.. Stainless Works Headers 2" With Catted Leads Aftermarket 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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