I went from blown out Gabriel shocks (hearing bubbling noise, and they just wouldn't even expand all the way on their own) in the rear to some Koni red 4-ways (on the lightest setting) and what a difference it makes! Now these are 6+ year old Koni's that I ripped outta my friend's car (now my part car). I can feel it planting me in my seat now and the rear isn't leaning down in the corners.. I haven't launched hard to see how much better it grips, but wow I'm impressed.