These New Hotchkis Front and Rear springs will fit any LS1 Camaro, Z28, SS, Formula, or Trans Am.  They will lower your car 1". 

Lower your GM F-Body 1" Below stock ride height to give it the right look, with an aggressive stance and a lower center of gravity. Hotchkis springs provide a firm, but not harsh ride. Each gray powder coated spring is precision wound using the highest quality steel. Specs: 1" Lowered Front 285-525 lb/in, 1" Lowered Rear 100-140 lb/in LS1, V6