give some thought to just cutting and trimming the ones you have.
JK's sheet metal is thin. Bolting heavy steel to it and then hoping it protects your jeep is an iffy proposition. You lean into a tree or rock, yes, your steel fender is ok but what has it done to your body. More weight, more money. When I get personal with a rock or tree with my cut flares, and it has happened a number of times, the flare either pops back or a clip breaks. Get a new clip put the flare back on...not a bad deal.
The steel/aluminum flares look cool no doubt but I'm not sold on them for the JK's unless you do some type of custom outer tube that connects back to the frame.