Flowmaster introduces their manifold downpipes for 1967-1972 GM C10/C15 1/2 ton 2WD pickups with small block V8 engines. These 2.50-inch mandrel bent 409S stainless steel downpipes fit only the factory Angled GM Ram Horn style manifolds and include 3 bolt flanges, donut gaskets and donut sleeves. These downpipes are covered by Flowmaster's Lifetime Limited Warranty and can be used with systems part number 17654 or part number 817654 for a complete engine back exhaust installation.
