Hi Boyka,
The only vendor that sells pre-retrofitted Yukon housings is the one linked to you above.
A company called Lightworkz will also retrofit your housings if you send them to them ... and they will have more projector/shroud/lens/ballast combination options. However that will be just as, if not more expensive than the ready to go blackflamecustoms solution.
I'm afraid there is no simple solution to the lighting issues of the GM NNBS trucks ... this is further accentuated by the catastrophic H13 bulb in the Yukons.
As always, your options are few, and the sound options even fewer:
1. Do nothing
2. Get the best H13 halogen bulb our reflector housings are designed for. This is the Pilips X-treme H13 bulb. I'm not going to lie to you, I use it, and it's not much better than the oem halogen bulb.
3. Do what most uninformed or uncaring people do and insert a PnP chinese made HID kit in your halogen reflectors. This will increase output, but nowhere where it will be useful to you, for it will put no more light on the ground and just massively glare onto others.
4. Buy an after market projector housing from ebay and the like. Save yourself the trouble and cut to the chase by taking $200 and set fire to them. The light output is so poor in 99% of those that you are risking your life every time you drive at night.
5. Spend the considerable money required on a professional retrofit.
I'm sorry, there just isn't such a thing as an option that is both inexpensive and that would measurably increase your usable light output. Others will protest and dispute these facts, nevertheless, it is what they are.
Cheers!
PS. If you click on the HID Basics link in my sig, all the above is explained in better detail.
