The prototype front roll is bar is only the Mi5 Front roll bar and mounts how ever I'm not sure if the carbon piece on the front is a part that has been in production for a while or so? Regarding the production roll bar I had the same issues how ever all I did was tilt the little plastic part 30 degree to the centre of the car and just tighten the screw all the way so it doesn't move. After doing that had no issues with the front roll bar, Hope this helps
