I've had some experience making our three Camrys handle, for starters, a front strut tower brace, better shocks, and wider wheels and tires have good payback. After that it gets more expensive...coil overs, solid bushings, a rear brace, thicker sway bars, ect. To keep the ride quality, I don't suggest more than the first three, but in any event it takes more than a different "type" of tire. Yoko does make some good products.