Wehrli WCF100174 - 01-04 Duramax LB7 Billet Exhaust Manifold & SS Up Pipes w/ Gaskets and ARP Hardware

Wehrli WCF100174 - 01-04 Duramax LB7 Billet Exhaust Manifold & SS Up Pipes w/ Gaskets and ARP Hardware

Billet Exh Manifold & Stainless Up Pipe KT w/ Gaskets & Hardware, 01-04 D-Max

Wehrli Custom Fab Billet Exhaust Manifold & Stainless Up Pipe Kit w/ Gaskets & Hardware, 01-04 Duramax

WCFab's 2001-2004 LB7 Duramax Billet Exhaust Manifolds replace the restrictive factory cast parts with high-strength, TIG-welded high-flow billet steel components. These manifolds are exhaust port gasket matched and internally divided for optimal flow with OEM or ported cylinder heads. Outlet locations allow full compatibility with OEM style up pipes and are paired with WCFab's 2" Stainless High-Flow Up Pipes for optimized performance. Includes new gaskets, ARP 12PT fasteners, and assembly lube for easy install. Finished in Black Ceramic Coat rated for 2000 deg F. Manifold replaces the following GM Part Numbers: 12637647, 12624683, 97224587