February 2006 issue of Dsport Magazine features the AP Manual Boost Controller compared to other brands on the market. 

Agency Power’s brand new Manual Boost Controller is now available for your turbocharged vehicle. Designed with performance, fitment, and style in mind, the AP MBC will give your turbo vehicle some much need horsepower with a couple of easy twists of the unique adjustment knob not seen on any other manual boost controller.

How does the AP MBC work? Simple! The MBC is a bleed valve design, which has you connecting the hoses on either side to the compressor and the wastegate of the turbo. The MBC controls the airflow through the valve by the adjusting knob. Loosen the knob and more air moves for higher boost pressure. Tighten the knob down and restrict the flow for less boost pressure.

The AP MBC includes 2 feet of 5/32 vacuum tubing, a flexible aluminum bracket that bolts to the MBC and has predrilled holes for universal fitment, and hardware.

Available in Blue or Red for all Turbo Cars.
Check out the pics and information in DSport Magazine.