Ram Air H/O Exhaust Manifolds for 1964-67 GTO, Lemans, Tempest. These reproduction Ram Air D-port style exhaust manifolds were originally installed on Pontiac Ram Air models with Pontiac engines and D-port heads. These high performance reproductions are designed and manufactured from high grade cast iron. LH and RH manifolds accept a 3-bolt flange. Both manifolds require 2-1/4" headpipes. Flanges sold separately. Gaskets not included. LH and RH. Replaces GM numbers # 9777646 and 9777642.

OER EX2345G Features:

• Direct replacement design