I installed the Eibach Pro-Kit on my 2002 (Gen 5) XLS I4. The drop is plenty, even more than I wanted. The rear seemed to drop a bit more than the quoted 1.1 inches as well. The car rides firm, even kinda harsh with the Pro-Kit and new replacement OEM shocks. If you're after handling your money is much better spent on the TRD rear sway bar and front strut tower brace. If you want improved looks, go up to 17"x7" wheels and mount 225/50ZR17 tires. If your ride still isn't way better then put on some stiff shocks, though for the Gen 5's you may have trouble finding anything other than the crappy KYB's. Lowering would be the last suspension mod I'd suggest doing on a gen 5.