Can many of the upgraded GT3/cup arms and links have solid bushings as part of the upgrade. This is great in terms of added road feel and responsiveness but on the street it can get to be noisy and wearisome. I sold my Gt3 for that reason as my intended application 99% of the time is as a street car. I also have not added any sways either for the same reason - I don't ever push the car hard enough to experience understeer and excessive body roll on the street, so the ride degradation of stiffer sways is not something I can justify at this point.