Bimmersport and RMP both have GT1 machines and can both do this for you.
This actually shouldn't be too expensive at the dealer (i paid 58$), but if you do go to the dealer, make sure they tell you how long (labour) it will take BEFORE you drop the car off. This process takes 10 mins.
I run a canadian HID kit company, if you have any questions about hid kits in canada or would like to check out our products please contact me here: http://absolutehid.ca
Hot: 2001 Estoril M Roadster
ZCP 19's michelin supersports, ZHP knob, JL 8W3
Cold: 2002 TiAg M3 6mt ZCP 19's michelin supersports, deoranged, dechromed, led tails, ZHP knob, UUC SS v3, GROM, OEM 18's w310's,
Fun: 2006 YZF-R6, black