I have a regular 9007 HID kit in my headlights, so low beam only. I also changed out the stock fogs for the angel eyes. After modification of the brackets and making a new wiring harness for those, just with the stock bulbs in the angel eyes it works fantastic for a high beam substitute. HID headlights on, flip the fog light switch and it's like switching to high beams.

I haven't yet done the mod to keep power to the low beams in high beam mode, so if I click to what would be high beams I lose all light except the parking lights though. I haven't come across a method, but there may be a way to keep the fog lights on while the car thinks it's in high beam mode, so it could be set up that nothing changes from switching to low beam mode to high beam mode if that makes sense.

From all I've read, it's not worth the money for the dual mode HID kits in a 9007 since they require all the modification for a decent dual beam functionality. The way I did it, it works well and I don't have any complaints. Later down the road I could even buy an HID kit for the angel eyes if I wanted more light output.