I used moroso rear trick springs im my malibu and it lowered it alot over the factory coils. And there is a left and a right coil (one is stiffer than the other) Car still sits level too. Check out moroso PN:47500
Heres a link to the site :
http://www.moroso.com/catalog/catego...?CatCode=26002
I put air bags in mine just to adjust ride height....5 psi in the bags rase my car 3/4 of an inch. Hope this helps