It might be 20mm lower than standard being an sri but thats in the springs not the shocks, so if your changing your springs its gonna be whatever is written on the box :thumbup: not 40mm+20mm
I've spax lowering springs in mine (demon tweeks) and it works ok for the amount of use it gets but I think with springs you get what you pay for. If my car was worth anymore I'd have eibach pro's without a shadow of doubt but its only a run around. Had eibachs in a couple of cars and all I can say is save your money a bit longer and get them, theyre worth every extra penny 8)