1989 IROC-Z Springs. 60K miles on them in perfect shape boxed and ready to go. I'll do $70 shipped to the lower 48 states and yes...I'd be paying $20+ just for shipping.

They're .5" lower than non-IROC-Z springs and they're MUCH firmer than RS or Pre-1990 Z28 springs. Decent upgrade if you're not looking for a lowered look.