So my new ga15i is still acting up. It's still makeing that nosie. Which I am fairly sure is a vac leak because at WOT it dosn't seem to do it. I have no idea what would be leaking though. Another consern I have is that I read somewhere that if you have a manule and replace it with a at motor that you have to change the rear main seal or some thing. Anyone know if that's right?