Sorry
The difference between a real P1 splitter and copies are the real ones are a lot more flexible.
Copies are more rigid which cause a nightmare when fitting.
It will also pay you to have two additional L shaped bracket made.
One for each end.
Grounding out on ramps etc will cause the splitter to become loose with the two central brackets that are standard. Having the additional 2 brackets makes a massive difference and also holds the splitter together better where it adjoins the bumper.