I've got the Morimoto's in my housings, and I can promise you won't be disappointed. I especially like that they function as a low beam and high beam, as I've got mine wired so the cutoff shield flips up when the halogen high beams come on. Quad high beams make it so easy to spot those idiotic deer that seem to wait for me on back roads. With 4300k or 5000k bulbs it'd be amazing, but I got 6000k 35W bulbs to match my Diode Dynamics switchbacks. They're still plenty bright though, with a properly aimed cutoff I still find myself rarely needing the high's.
As a heads up, I'm not sure if everyone has to with their retros, but I did have to create a hole in the headlight bracket as the back of my projectors stick out pretty far. I've see one or two people just cut out a big chunk, which I bet is easier, but I didn't want to make the bracket structurally weak. A simple hand drill, a dremel, and patience left me with a hole just big enough for the projectors, and the bracket didn't have any more give than it originally did.
