Under motor near the front. I believe it's the same as all 2.3l engines, so it's a cartridge filter behind a plastic cup. There is an allen head bolt you remove first, then you remove the cup/cover. Pull the o-rings off the allen head bolt and the cup/cover and replace with the ones provided with the new filter. Put the new filter on (doesn't matter which way) and replace in reverse of removal instructions.
You may have to remove the plastic undercladding to be able to see it.
