Typically, an OEM projector from some random car (G35, TSX, RSX, BMW) will be of very good quality. Some come as bi-xenon, and some don't. The Morimoto projectors are decent, but do not have as nice of a beam pattern as say a FX-35 or FX-R, which have a nice, uniform, wide beam. The Mori's are, however, more compact and a hair cheaper which makes them very attractive for people like us who have very short, squatty headlights and don't want to spend $500+ doing a retro. One of the major differences between the smaller projectors and the nicer ones is the type of bulb used. The nice ones typically use a D2S bulb, where a cheaper projector usually takes a H1 or H3 size bulb.
I put a set of FX-R's in my car and absolutely love the look and light output. It took a lot of cutting and fiberglass work to create, but well worth it IMO. With 55W ballasts and some nice, OEM bulbs, my headlights will put a new Acura or BMW's lights to shame.
