So yesterday I installed the kit myself. It took some time but wasn't to hard to do. here are some pics.
Note, that the dashboard pic is after pushing the car for a good 45min on highway at high speed and backroads with high revs. I am absolutely stunned how this kit keeps the oil temp down
In this particular scenario I would almost reach 120c degrees and DME would pull back power untill temp comes back down.
Now my car feels constantly responsive, no matter how hard I push it. I would say getting an oil cooler is not only good for track but for day to day as well.