I pulled my HFC filter out today. Also replaced the map, dome, door pocket, and rear license plate bulbs with LED ones. Both only cost me about $10 and 30 mins or so. I also detailed the interior while I was in there. I just bought it about a week ago and haven't been driving it because I have parts on order. The transfer case is about to come apart to replace the actuator. Hopefully it'll be here by friday so it can be fixed soon. I've loved driving it the little bit I have. Much better than the 3rd gen.