Not quite sure if the same applies, but on the rally car, the oil pressure sender fits in place of the oil pressure switch.
Just a question tho, what are you going to do with the information that it provides ?
Okay it will show that your picking up oil from the pan and shooting it around the engine, but then the question is what is the acceptable range.
I have the pressure gauge in two cars and honestly I find the information that they give is just meaningless at best. Maybe this is different in a boosted application, don’t know on that score.
I personally just think that it’s a lot of stuffing around just for that gauge.
If your going to mod in an external oil cooler, then fit the sender in with that job.