Posting the youtube video on the how to
Common areas for leaking
1. intercooler boots
2. intake shelf gasket
3. grid heater gasket.
pressurize the system, to ~ 5- 10 psi using the setup in the above video > next use soapy water in a spray bottle to soap up the intake track. start at the turbo and work your way to the intake side of the engine. Spray and watch for bubbles in each area.