To start out I'd go with a strut bar. It will really stiffen your steering and allow you to corner better, but your rear will still feel like it "floats." I'd then get a rear sway bar. Turbo Tech Racing is about to release one. That should really help your steering become more neutral, however, if you want more I'd then install the front sway bar from the SS/SC into your car. Then look at lowering springs. Some LS owners have switched to SS/SC springs. Koni also offers some shocks.