Essentially no use on these. I bought them to lift my WRX but they ended up being taller than I wanted. Rears were installed and driven on for 1 day. One of the fronts has some marks from spring compressors (it was never actually put on the strut), the other is still in the bag. I paid $55 for each of these from Chaplins on 10-11-11 (cost is now $62). $60+shipping for front pair, $60+shipping for the rear pair or $110+shipping for all 4. Local pick-up (Willmar) is OK. Part #'s are 20380SA340 (front) and 20330SA230 (rear) Rears Fronts Steve