I bought a stock one on a Tiguan. The rubber is hard, it hits bumps very hard. It makes noise, rattles like with spikes, at any speed. At a speed of 100 starts to swim dry. In general, somehow finished off the fourth year, because. the second and third almost did not go, I will take another. All the time there was a strong feeling that it was about to gouge the whole car, all the bolts from shaking and vibration were unscrewed. Almost no wear, 20,000 miles.