Re: my 02 gm gs
MSD digital ignition, bosch plat plugs, some 8.5mm double wound wires, dual exhaust (borla cat back is really good), Mac performance headers.
gas slotted rotors with semi metallic pads (stops on a dime and gives change back)
I like KYB gas adjust shocks, or some nice gabrial red ryders ( I run a set on a 91 crown vic and love them ).
Tires: If you want a nice ride Kelley Cherger 215/65/R16, if you want a handling beast, Kelley 215/60R18 front, 235/55R18 rear (need new wheels tho :) )