This is a "CHAMPION RACING INTAKE MANIFOLD". Its a high rise manifold with long runners, complete with billet high flow fuel rails for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Complete intake assembly for the Buick Off-Center V6 block. Comes with billet aluminum fuel rails, cast 70mm upper plenum and mounting hardware and bolts. The EGR tower is machined out and welded closed before the final polishing stage. Requires an aftermarket fuel pressure regulator.