I was going to make my Firebird handle alot better with these, but I sold the car. These are Vogtland springs, which are very nice quality, they are German and have been around for ages, I am gonna buy some of these for my new car.
I the kit is 959213
lowering only 1.2" so you dont damage your headers, but great look
These are not progressively wound (except for tender portion), for better response and transition than Eibach Pro or Sportline
Spring rates are 540 fr and 230 rr, a nice balance
fit 93-97 4th gen Firebird and Camaro f-body LS1 or LT1
I paid $178 plus shipping, get them today for $170, again BNIB
pm me or 716-310-5281
Eric