Depends if you want to keep the TEMS. The TEMS shocks are bloody cheap from Toyota - $71.50 each list price. These are KYB items and aren't too bad. I'm not sure what brand springs I have - except they are two inches lower on the front and an inch lower on the back. Very hard to get the trolley jack under front crossmember, slight nosedive into the corner but you can feel the stiffness increase when the TEMS comes on. Corners well for a 1600 Kg car. If TEMS does nothing your shocks are probably f**ked. Currently I have some JZA70 original Bilsteins and springs on my MA70 to pass RTA inspection but the lowered springs (and TEMS) are better. Brand of springs unknown except original colour was yellow.