Boost leak tester is easy to make. If you have an air pump, you just need your TMIC hot pipe, an ebay/auto store valve stem, and a bunnings PVC end cap. Hook that to the intercooler, pressurise to 20psi and you will find anything that is leaking post-turbo (i.e. loosing pressure) without pressurising the crank case (soapy water is awesome for finding pinhole or gasket leaks).
Also check all of the EBCS hoses to make sure that there is nothing loose/broken nipples or what-not (this was the first thing my tuner asked me to check when my car wasn't holding enough boost).
Fast: RayD Tune|COBB AP|JBR|Stratified|CP-e|Xforce|Autotech|Denso|Corksport
Turn: Bilstein|Eibach|Whiteline|JBR|Hankook RS3
Stop: Wilwood 4pots|Custom lines|DBA T3|Remsa|TRW 600
Rice: JL|Alpine|Focal|MiniDSP|Rota g-force|2XS|Cree|Celestial Blue FTW!