im a toyota technician in shelbourne, drive a p1 ts put the tein basic kit in, it is impressive not as harsh a ride as koni shocks, which is good, as a bit of comfort helps. they are alot firmer than springs and you dont worry about firing her into a corner. although would advise you to buy a strut brace as well to help responsiveness and stop twist. if you just want springs my preference is pi for lowering and being firm, they are all i fit and hav had them in 3 motors of my own.