93 Octane

08 N54 Power Cut under Heavy Boost, Repeated

No codes thrown, no other symptoms. Guesses are LPFP, Crank Sensor, Throttle Body, 1/8in BOV hose instead of recommended 1/4in, or DME. Work done prior to issue was Eldor Coils, NGK Plugs 1 step colder (no idea if properly gapped), alternator, radiator, battery, crank sensor. All work was done in one go, and the issue came after the work was done. Has gotten worse with time, but did let up after one flash. Flashed again since, and the problem returned, worse than before.