yeah thats just plug and play, but has a h7 bulb instead of an h1,
you could get a bi-xenon h4 kit which would do the other light but be both dip and hi beam.
the thing with the fazers, is that the reflectors can be really shit,
so even with a wicked hid setup or a good halogen its still going to be crap if the reflector is crap
£50 seems a bit expensive just for one side as well,
if your not in too much of a hurry then order something from ali express
http://www.aliexpress.com/item/Super-sli...eb201560_9
half the price and get 2 bulbs and balasts, they will even do 1 h1 and 1 h4 bi xenon for a few extra quid, all for about £30.
thats if you want to keep every thing to be able to go back to bog standard, other wise id do what alexanderfitu did
http://fotifixes.com/2012/12/27/hid-proj...fazer-600/
you can get a set of h4 bi-zenon hid projectors for around £54
http://www.aliexpress.com/item/2ABC-Univ...39432.html if you are going to buy them off aliexpress then buy them today as there is a massive sale on for today only £44 including delivery.