I figured i'd share some pics of my $8000+ mistake. It happened in 5th gear. low RPM and high load. The Boost gauge hit 35psi and the car went lean according to the wideband. Cylinder 3 let go and put a hole in the front and back of the block and bent both intake valves. Also created a small fire that melted the entire engine control wiring harness. I've tuned my own car successfully since 2015 because of all the great info on this forum. This came down to getting too aggressive with my tune and forgetting to set some failsafes. Check your tune everybody!