Turn the driver side wheel all the way towards the car. pull the mud guards off the inside of the fender, it has like 2 or 3 clips. Remove the screw that holds the corner of the bumper on. Pull the corner of the bumber off a bit and you should be able to reach right in there and get the filter element. BTW, the screw that hold the bumper on is right here..
You could just remove the cover underneath and unbolt it from there?
whats the best way to clean it? I have 10K on mine and I guess its getting close to that time.