NEW EXHAUST MANIFOLD FOR YOUR CHEVY / GMC PICKUP TRUCK & SUBURBAN! Direct Replacement for the 454 cubic inch engine. Has 4 emissions holes with plugs so that it can be used on all vehicles, with or without AIR tubes. Includes heat shield. Driver's Side Brand NEW fitting the following years and models: 1988 1989 1990 1991 1992 1993 1994 19...