Has anyone tried this and noticed any difference or been able to turn the boost up? I will be going single soon, and being able to use what the turbo is capable of without running 100+ octane all the time is one of my concerns. From what I have heard just over 500rwhp is the limit for pump gas. I know some have dynoed way over that number on pump gas, but I have trouble believing it is something they would do daily. Could water injection raise the safe level to 550-600++?