Hi all is their away of tell if my sport has had its suspension changed too turbo units I'm asking becouse my rear coils are saging bad I need the oder new ones I can't aford too change tham all for better ones at the moment but need the change the rears I don't no if thay have been swoped for tubo ones in the past it does feel firm on the road but don't no if sports are like that any. And just out off intrest I'm runing 18inch wheels what would be an ideal lowering hight if I do get four lowering coils I don't want too go made as I do have people in the back and don't want rubbing