Mike, I just did my 09 DC this afternoon and removed the filter housing with a standard filter strap wrench. Clearances were a little tight, getting it to bite and turn, but didn't have any real issues.
Although what I did worked, I reckon I'll pick up the 65mm 14 flute filter socket next time I'm at NAPA. Right tool for the right job... or so I've been told.
There's also a
DIY with some more current responses.