These high quality Stainlessworks long tube headers fit the 2003 Silverado & Sierra 2500/3500 with 8.1L V8. This long tube design increases low end TQ and high end HP. They are constructed from Everlast 304 stainless steel, and 2" CNC mandrel bent primaries, 3/8" thick CNC Laser cut flanges and 3" collectors. This kit bolts right up to the factory head pipes and cats.

Available with 1 3/4" and 1 7/8" primaries by request (just note it in the comments field at check out)

Please Note: StainlessWorks is a premium custom exhaust fabricator. Many of their systems are built to order and may take 1-3 weeks to ship.