Originally Posted by timtalkshow
If so, which parts would we I need to buy? (I have a 2012 WRX, Premium) Wouldn't that be substantially cheaper than buying a complete set of OEM headlights?
I'm not sure. I've only purchased very few brand new OEM parts. Based on those prices, I expect that you can get a complete aftermarket headlight pair or a previously used pair from craigslist for about the same cost.
2012 WRX premium is still the GV/GR/GH/GE platform, unlike the base Impreza, correct? There are aftermarket ones that come with a sub-par halogen low beam projector. The nice thing about those is that the adjusters (for aiming pitch and yaw, but not roll) can be used for installing a biXenon that is better than the simple Mini H1.
As you may know, the Mini H1 (and the Mini D2S)'s largest advantages are the relatively compact width and depth plus the threaded back that makes retrofitting on housings with reflector very easy. However, bigger and better projectors may work more nicely with housings that were designed for projectors.
Here's an example, for the bugeye headlight. The 2 long screws that are oriented vertically in this picture, as well as the white plastic with a rectangular top, are the pitch and yaw adjusters that came with the aftermarket housing. With a bit of work, you can fit a variety of biX projectors in there. RX350, FX-35, FX-R, e55, e55r (EvoX-R from TRS), etc. But not the larger ones like the Lexus LS' low beam HID. The biX in this picture is an e55r.