Yea McKay is right. You will literally rip the stock LCA's apart with an aftermarket bar; ESPECIALLY the biggest bar on the market.
With that said, if you plan on lowering your car, the HO rear bar is too big. Way to stiff. It will cause a potentially dangerous oversteer characteristic..... Ask me how I know...
Furthermore, the F-Body front bar does work, but it does not fit right. The angle on the endlinks is way off, and the geometry is simply not correct.
Nothing on the market compares to the Hotchkis bars, and my suggestion is that it's worth spending the extra dough and getting the best. With the hotchkis bars you'll need aftermarket LCAS. You do not need the ultra expensive Hotchkis arms though. www.umiperformance.com has the best bars for the money period. Crovo, Myself, and many others run them with zero complaints.