The easiest and most affordable thing to do is get kingsprings. As you can see as jeffy had linked, it gave me a 35mm dropped. IMO if youre still carrying a family around then this would be ideal. Never bottomed out, yet (at the time) it looked slammed in comparison to a stock camry. but for the sake of your question, you may want to click this link http://www.toyotanation.com/forum/104-5th-6th-generation-2002-2006-2007-2011/227981-gen-6-suspension-thread-coils-spring-strut-bar-sway-bar.html