i have in my car a brand of springs that was discontinued for the crx call gold line it was 2.5 and 2.0... But i recoment that in springs you should go with H&R race springs, they have the same rate and is a great brand and struts go kyb. And to go stiffer put thiker tension bars.

Finding the stiffest spring will not always mean no bouncing or bottoming out. Just don't buy some cheap ebay brand and you should be fine. H&R is a great brand as well as neuspeed and eibach. Race springs will give you the drop and stiffness you're looking for. You could throw in adjustable kyb agx's and find the setting you prefer. If you got the $$$ skunk 2 is a good entry level coilover system.