The pressurized air to the controller and wastegate are supplied by the banjo fitting on the hard pipe between the turbo and intercooler. This is the ideal location because it supplies the highest pressure available in the system since it's before restrictions where pressure drop comes into play like with the intercooler and throttle body.

When installing our MBC on a Dual Port Wastegate, we no longer use the factory boost controller known as the cycling valve / control valve. You can leave this under the intake manifold if you like but we do not run any hoses to it for our new wastegate and controller. There is one hose that runs from the cycling valve to the "J" boot just in front of the turbocharger inlet. We want to plug or cap off this hose. Whether you leave the cycling valve plugged in or un-plugged is not important.

When adjusting the controller on this set-up, you adjust the knob "clockwise" to raise the boost level, and "counter-clockwise" to lower it.

The wastegate in this picture is a Lindsey Racing Dual Port Wastegate. If this was a TIAL brand wastegate, the lines at the wastegate would be reversed. Side is now top, and top is now side. This is done because the valve travels in the opposite