Genuine focus HID headlamp units or the aftermarket HID bulbs? If it's the bulb's then dont bother. I used them for about a year on 2 different cars, and the beam pattern was complete rubbish. Got fed up with them, so put some uprated halogen bulbs in and they were far better! Think I might still have the HID kit in the back of the shed, its yours if I can find it