There is a huge diff in handeling! No Mustang has been great on the road and the S197 is an improvement but not near what I want!
I want to feel the road, feel the grip or it slipping. Could not trust nor feel where she was going with the mushy stock suspension, even worse (Ithink) was those wheelbarrol tires they put on!
There is a reason Euro and Rice Racers make fun of The Stangs, 'well it's fast straight ahead' see you on the twisties' 'just don't turn'... it used to be the same for the Vette but look at their handeling package now, wheels, suspension, even brakes! Grant it it's twice the price but not so many make fun of it not turning and stopping anymmore!
I'd say the springs and wheels for me was about 50% handling, 25% feel and 25% looks... The Anti-Roll kit was 100% handling and feel and oh so much worth it, I can't even explain, you're fast, very fast in a sharp turn, there is no buckling, no giving, the first thing that starts giving is the rear wheels, just a sqeek... you know you're borderline, you know it will stay there becaus the wheels WILL NOT caster, drive on the edge, all four are planted (less the side/forward squeeling from brut force)! Nice!
I used to drive a M3 before this and was just not used to hang over the ditch with the car while the wheels was on the road... not cool!
(Two 05 GT owners have driven my car and gone straight to a computer to shop for suspension parts!)