OER Parts offers a selection of OE Style Manifolds for your 1979 Pontiac Firebird. OER Parts offers 1979 Pontiac Firebird Exhaust Manifolds without Smog Tube Holes, 1979 Pontiac Firebird Exhaust Manifolds with Smog Tube Holes, 1979 Pontiac Firebird Hemi Exhaust Manifolds, 1979 Pontiac Firebird Ram Horn Exhaust Manifold, 1979 Pontiac Firebird Ram Air I Exhaust Manifolds, 1979 Pontiac Firebird Ram Air II Exhaust Manifolds, 1979 Pontiac Firebird Ram Air III Exhaust Manifolds, and 1979 Pontiac Firebird Ram Air I Longbranch Exhaust Manifold.