The shocks will help some to stiffen up or soften the ride but the springs contribute to the majority of the stiffer ride. If you are on stock springs and upgrade to the koni struts then you should actually have a softer/smoother ride and should be able to adjust the koni's to make the ride softer or rougher.
Your mustang will definitely handle and corner better with the Koni upgrade as well.
AirRaid CAI, BBK Ceramic LT Headers, BBK Catted X Pipe, Borla ATAK, MPT 93/97 Tune, Steeda LCA's and UCA, Steeda Relocation Brackets, 373 gears, WaveTrac LSD, Dynotech Driveshaft. Prothane Motor Mounts, Whiteline adjustable panhard bar & brace.Ground Control Coilovers with Koni's custom valved. Coming soon Circle D 3800 Stall and Lone Wolf Intake Manifold.