stock BMW rubber is damn good. You have to accept a certain dynamic in the suspension system. if this was a track car, then my opinion would be different. HOWEVER, i must say that Ive been in all-ure cars, and they arent bad! Mike87 has an all-ure car and it feels taut and ready, and not harsh. Howver, I decided to stick with all stock BMW rubber, but with Turbo front subframe bushes. Rubber is good. Love the rubber.