When i accelerate, in 1st, 2nd, i hit 15psi, too risky pushing it over that, 3rd about 18psi and 4th, 5th i can boost to 20si?? Is that right? Ive got a standard intercooler, but its chipped. Could it just be my clutch slipping, broken boost gauge or it can reach that on standard intercooler. I thought the highest you can hit is 15psi.