The advertised stock 3.6 compression is reportedly wrong too
Factory says 11.3 but stock motors seem to measure in the 10.6 range. Not my measurement, but from multiple reliable first-hand sources.
"Do Bosch injectors on a Porsche react differently because it's a Porsche?"
Are these silly comments necessary? The motronic on any make/model makes many fuel adjustments beyond the idle, part throttle, and wot maps you mention changing. The stock fuel flow is hard-coded throughout the chip, which I already mentioned. This only one of many reasons why cranking the fuel pressure is not a good approach. I'm only offering my direct experience and chip knowledge for the author's decision; not selling anything.
Best of luck!