Has anybody successfull installed a harness bar similar to the one linked below into an RX8?

https://www.avb-sports.be/mazda/rx8/...oll-bar/25090/

I'm looking at harness solutions for drifting for my RX8, yes I am aware of concerns relating in the event of a roll over, but the design of the course and way it is setup makes roll over extremely unlikely, I just more don't fancy spending more efforrt trying to stay in my seat than I do trying to drive.

This is probably only a temporary solution anyway as when it's MOT expires (UK's road worthiness certificate) I probably will gut the entire interior and start looking at options for full cage. But atleast for now I want something I can remove outside of events and continue to use the car on the road with the backseats intact.