When we reviewed the X4M last year we noted that whilst it handled well, it had a very harsh ride, making it fairly unpleasant day to day especially when you consider it is an SUV not a sports car. Owners of the cars agreed with what we found, and MSS knew they could improve upon the situation.
Knowing the kit had been in development for a few months we were keen to get an X3M in to test out, and see if MSS really can fix that harsh ride BMW gave the car. Spoiler alert, it definitely can!
MSS Urban Adjustable Ride Management System for X3M/X4M: