Eibach Sportlines and Pro Kits, Goldline, Comptech all make lowering springs that way.
Originally posted by e30dood
The condition of a shock does affect ride height. Blown shocks make your car sag. Cadillacs are a testament to that. Usually most lowering springs are either linear or progressive, they wouldn't make the front set different from the rear. If so, what springs are linear in the front and progressive in the rear?