I am about to replace my front and rear springs and have come across a Hotchkis group buy allowing me roughly 25% off the list price. Although I'd love to be able to get their whole kit including sway bars, for now I'll have to settle for the springs. Question: Do the Hotchkis rear springs drop the car too much to run 17" wheels and tires? Would the nose be so low that headers would hit? And for those running them...how much do these springs improve handling? And what do they do for ride (I plan on adding their shocks or Bilstiens) quality?