This is a "CNC PORTED STOCK INTAKE MANIFOLD" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6.
This item is sold on a exchange basis ONLY. Customer must ship us their old manifold and if the core is in proper condition we will ship you out a new manifold. Customer is responsible for the shipping costs of the old manifold. Core charge is $300