Improve the sound and performance on your Chevy Silverado and GMC Sierra with premium headers from Stainless Works. American - Made and designed for the 2019 Chevy Silverado and GMC Sierra 5.3L 6.2L, these headers feature 1 - 78 primary tubes that are CNC mandrel bent to increase air flow, and engineered to create power. These headers come with 3 slip - fit collectors, as well as high - flow catalytic converters that flow into 3 lead pipes, merging into a X - pipe to allow an easy connection to your Stainless Works exhaust. Built from corrosion resistant 304 stainless steel, our headers are TIG welded for strength and durability at our state - of - the - art facility in Streetsboro, Ohio. We stand by our products with a lifetime warranty on materials and craftsmanship, and as always, our products are proudly made in the USA.