These high quality Stainlessworks long tube headers fit the 2003-2006 Silverado & Sierra 1500 V8 (4.8L, 5.3L, & 6.0L) with 4WD. They are constructed from Everlast 304 stainless steel, and 1 3/4" CNC mandrel bent primaries, 3/8" thick CNC Laser cut flanges and 3" collectors. This kit also includes a 2 1/2" stainless off road y-pipe (deletes cats).

Catted Y-pipe pictured. This system instead comes with an off road Y-pipe with no catalytic converters. 

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.