Just fitted my Gp with above and the ride is awesome, you do feel bumps but the body roll is like zero compared to stock. I dont even have bigger sway bars yet or a STB. You can pick up the springs at Suspensionmax.com and they are the cheapest springs for our cars but they ride awesome..the car sits perfectly too..will post some pics in the next week or 2 when the springs "settle" or whatever they say...