Yep, I fitted one of Aztec Performance's HID kits a few years ago.
Only thing I'd mention is that on mine, I had a strange wiring problem - think it was because Subaru use switchable earths. As standard, when locking the full beam on (not flash) the standard dipped beam goes off. With HIDs fitted, the bulbs have a few second startup time..... I was driving down a country B road at about 60mph at night, switched my full beam off when there was a car coming towards me, and I was plunged into darkness for that few seconds whilst the HIDs woke up!
Fixed it by earthing the HIDs to the chassis so they have a permanent earth - they now stay on when I use full beam.
