my 1988 supra turbo has the TEMS system and it still works but the car has 143000 miles on it and the springs and struts are shot i have been told if i use aftermarket parts it will disarm it and i want to keep it functional and stock i have been told even though the TEMS works i still have to replace the entire system i seem to be having a problem buying the system do they still make it and how much might it cost?i am new to the TEMS scene and could use some help thanks