Improve the sound and performance on your Durango with premium headers from Stainless Works. American - Made and designed for the 2018 Dodge Durango SRT 6.4L, 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 flanged leads to allow an easy connection to your Factory exhaust or 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.