I installed K&N Filters today and thought those of you who have yet to do it might like a few more details based on my experience with it. There also tips in the threads Air Filter and K&N Filter, but this thread has pictures above.

There are five clips that hold the combination engine cover/air-filter box to the top of the engine. The clips are on the cover, the sort of spring-like pinchers you can see on the left side (as you look at the picture) of the upside down cover, attached to the filter box cover.

The four big clips fit over the black, round rubber grommets you can see on both sides of the uncovered engine (the back left one as you look at the cover is hard to see but is just like the other three) one basically at each of the "corners." You can clearly see the front two grommets are just to the side of the things that look like tin can tops.

The fifth clip on the bottom of the cover is smaller and at the point of the front of the box on the underside of the Chrysler logo. It fits on the metal tube-like projection you see in the middle of the engine picture just above the upper radiator hose.

As advised by one of the threads, I pulled up the two clips in the back first. I just let them rest on the grommets and then pulled up the front ones and did the same thing. At that point I loosened the two plastic air tubes on either side at the coupling that is clearly visible. They just pull apart. You could pull off the entire cover with the tubes attached because they are not hooked on at the grill, but it is unwieldy.

The battle is half won at this point. With the cover off and upside down, there are four Torx (star) screws holding each filter cover down. The bit needed is a T-25 Torx bit (not a T-15 as someone thought above). Do not use a power driver to get them out. Do it by hand as they only come out of the air box but are designed to just stay in the filter cover and rotate. You can feel them come loose after about half an inch. Pull the cover off and the rest is obvious. Swap the filters, noting how the original Mercedes filter fit into the cover. The lip on the K&N filter is more solid than the one on the Mercedes filter; thus, when you get ready to screw the new lid back on, it helps to squeeze the two halves of the box together a little at the screw point with your other hand so the screw will start back into the hole threads in the same fashion it came out and not start to cross thread by drilling new threads for itself. It will start in easy if you hit it right. If not, back off and try again. Screw all four down, each a little at a time, so that when you are finished the two halves will touch at the screw points, but don't over tighten because you are screwing into plastic.

When I put the cover back, I was careful to see all the clips were first resting on their respective grommets (having reconnected the air tubes first) before I started pushing anything down, in order to be sure I didn't get the whole thing off kilter, paying particular attention also to make sure the large hole in the back center fit properly over the air intake hole on the engine (hard to see on the uncovered engine picture but obvious when you take the cover off). There is nothing that fastens. It just fits over it.

I hope this is of assistance to someone. In my opinion, there was a noticable difference in performance after the installation. I mean, after all this trouble, I'd better think so. Right? :lol: