It would have blown any ways. Stage 1 is the minimum you want to be at. The factory MAP is flawed. There is a flaw in the timing that causes burnt valves.
213,000miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. CHECK your oil, these cars use it.
Engine Build - Click Here