Several of us have had these fitted recently and they make a significant difference, the vibration is much reduced and the car feels more refined.
My main reason for having them fitted is that anything which reduces the stress on the chassis has to be a good thing for the longevity of the car and as I do pretty high mileages so this will make a difference.
Note, the regulator needs to be relocated to the front of the body and if you've not changed to a Harley type already then you will have to have this done as well.
