I think I've found the perfect fog light / housing combination. I've used the stock housing with the OLM MOAB LEDs but it wasn't very courteous to other drivers since it just blasted light everywhere. Then I tried the Morimoto XB fog lights but the adjustment screws and cutoff were of poor quality.
Initially the fog light corona DRLs had this weird thing where it steadily turned on and off but when I started the car it would go away. The corona DRLs are definitely bright and pairs nicely with the Subispeed S4-style fog light bezels (both are bright). The fog light beam itself is narrow and is easy to adjust with just my fingers.