i noticed that the stage I and the attatched stock down pipe had almost rubbed a hole in the rubber tube going from the compressor to the intercooler. i also noticed a poor seal on the pipe directly behind the air filter's metal housing was a poor seal on the bottom. I would recommend sealing all fitting with some black duct tape if you are not sure you have a good seal. Remember dusting an engine does not take long. Some of those seeing low boost numbers check this area for holes.