2014-17 Chevy SS 6.2L Headers. 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 1-7/8″ primaries, with 3” slip-fit collectors, off-road leads, with 3″ X-pipe to factory connection point. Headers are fully TIG welded and back purged. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.