I think I may have a minor boost leak and want to do boost leak test as part of my maintainance. From what I've read you can do damage if you do it wrong, so whats the correct procedue and what sort of pressure should I aim for during the test? I assume I need to make a blank for the turbo intake with a tyre valve in it to pump it up - what size is the turbo intake so I can order a bit of hose. I assume you cant do it from the MAF end of the TIP. Access would be a lot better but I guess the DV etc will play havok with that.