Eric knows FAR more than I do about these systems and if the pressure is a SW parameter it is possible but my beer money is still on the same pressure. The Porsche reflash example isn't particularly good in my opinion. You are just saying that someone can push the pump and seals out to the edge of their operational limits and they may not fail. BUT the factory didn't do it for the Porsche, tuners did. When the factory wanted more for street cars it was different parts because they need to maintain reliability and that isn't at 99% or more.