I have the same set up as you, with the Injen Intake and hot and cold pipes. I have an app on my phone called EngineLink, and a wireless OBD2 connector, so I'm assuming my readings are pretty accurate because they're coming right from the onboard computer. Before I modded the car I was peaking at 18 PSI and and running a steady 15 PSI. After I did the intake and stuff I've peaked as high as 22 PSI and run a steady 18. Do you, or anyone else know how much boost these motors can actually handle with the factory internals? I've been looking and I can't find an answer to that question anywhere. It's honestly a little scary, because 22 PSI is a LOT of boost!