Hooker Exhaust Manifolds - 2-1/2 in Outlet - Silver Ceramic - Small Block Chevy (Pair) 122005 Compatible with the following accessory

Compatible with the following accessory drive systems: Holley or stock F-body/GTO (GTO alternator not compatible

other sizes available separately

060 in Bore

Vehicle Applications: 2001 thru 2007 GMC Trucks 6

25′ barb and AN-16 Male inlet

Hooker Exhaust Manifolds - 2-1/2 in Outlet - Silver Ceramic - Small Block Chevy (Pair) 122005 Compatible with the following accessoryThese manifolds do not fit 1st generation F Body cars. These cast exhaust manifolds have been designed to fit into a wide variety of replacement and engine swap applications, with final outlet connections to be fabricated by the installer. The manifolds will not directly bolt onto factory downpipes. Made from high silicon molybdenum ductile iron for high temperature strength plus resistance to oxidation and cracking Designed with a larger 1 5 8" cross