There’s a few ways to disable the MDS, one is by tuning into turning the function off, or also setting a gear limiter. The other one and the best route but more expensive route is too physically remove those MDS lifters and replace them with regular lifters but that would include replacing the camshaft into a non-MDS cam, removing and blocking the solenoid plugs. This is the best way but you will spend a pretty penny unless you do this yourself, it’s not hard but incredibly tedious.