There are older threads on this topic, and I wasn't sure about resurrecting them, so here goes, my super easy way to retrofit a 2008 JKU with a Cabin Air Filter.Disclaimer: I am not a mechanic and don't claim to be. CRNA has posted up a good write up for a 2011, and his post inspired me (thank you!)You'll need three items:Filters (set of 2) - Mopar #55111302AAFilter Access Door - Mopar #68235887AAAdhesive Weather Stripping - I used Duck Weatherstrip SealFirst you'll need to completely remove the glove box and existing Filter Door. You don't have to replace the Filter Access Door (#68235887AA). You can reuse the old one, it'll just be harder to change the Filters.To remove existing door - Pull straight out. There are four tabs, two are behind the passenger speaker box. I broke a tab off while removing it (blue arrow. Its a bugger), but since I'm replacing this piece, no biggie.Make sure the Recirc Door (Baffle?) is up so you can see the blower. I built a little 'Foam Berm" out of the weather stripping to keep the Filters in Place. The Filters rest directly over the Blower (not on top of the Foam Berm). The Foam Berm goes around on all four sides. If you have a 2007-2010 JK, you won't have the built in holder like the newer JKs have. I hate things rattling around. And you don't want anything falling into the blower. You want to be sure your Recirc Door Baffle can still close completely.Here's the set of Filters resting securely in the Foam Berm:The Recirc Door Baffle can close completely with the Foam and Filters in place:To install the New Filter Access Door, line up the two pins on top and press into place.The new style Filter Access Door Installed. Easy to change the Filters.So far, so good! No shot of dust to the face after wheeling and then turning on the air!