Last year I bought Dropzone coilover suspension for my car and the problems that I've had......First every bump hit hard, second I hit a pothole one day and the perch for the spring broke off the strut tubing and my car was literally 1/2 inch off the ground......and more recently my spring broke into three pieces.....don't ask me how this happened because I dont know i just new that I heard a clinging sound and the front drivers side was lower than the rest of my car.....took the tire off and found a spring in three pieces.....replaced the spring....but I gotta wait a couple of more weeks for my tein basics