i just picked up a set of 20s for the cav to be used for next season. b4 i put them on, i want to change up the stock suspension. how low can i go without doing any mods to the body?....i want to just change the struts and springs..so if you have any good setups i can go with it would be a big help.....and the tire size will be 225/30/20 thx.