Evolution rather than revolution and I feel as though that was all that was required, so its question of whether you feel its value for money. I'm certainly very pleased with the outcome. A definite and noticeable improvement in all areas of the car's handling and a variety of situations. I forgot to add that I had a good few miles on the A23/M23/M25 on the way back home yesterday and it definitely adds a smoother and more well damped ride quality on motorway surfaces. Very happy with my investment.