So as the story goes. My s3 is more show than go at the minute. It is underpowered. I replaced the TIP and most of the breathers with silicone so im pretty sure things at that end are good, but still not smooth power. I unplugged the MAF and it runs a hell of a lot better so i ordered a new one and received it this morning. plugged it in and it runs worse than ever!! so where do i go from here? could it be something to do with the n75? could the turbo be gone? one thing i really notice is that if i am around 2k revs, 5th/6th gear and i put the foot down, there is a seriously loud air noise coming from the turbo. all noise but no go. help me, please. im losing faith!!