I have a factory exhaust system (everything but the Catalytic Converter) that came off my 1999 Silverado LT; 5.3 V8; Extended cab when I bought it new. Truck was only only about 2 months when I replaced these parts with a Gibson aftermarket system. System includes both factory exhaust manifolds (with heat shields & mounting hardware) and exhaust pipe/muffler & tailpipe assembly (all one unit). (also have the stock air intake box)Nearest thing you can get to NOS.
Make an offer. Email to soundhd@comcast.net for photos or call 734-747-8441. Ann Arbor Michigan