I wish I had a way to get my dyno graph onto the computer. My peak boost is 11 psi. The boost really starts comming in at around 3000. at 4000 its at 5 psi, at 4500 its at 7.5, and 5000 its at 9. Peak is just under 6k. Peak HP is made just under 5500 RPM, peak torque is at 4000.