This is a "PTE Adjustable Actuator for a Stock Turbo Housing" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. This adjustable actuator comes with a the correct bracket to mount on your cars stock turbo today! Replace you old worn out and NON adjustable Actuator with this item and your can adust the boost levels. Available in a Standard spring pressure (18-22PSI) or a Heavy Duty spring pressue (18-30PSI).
