I understand your concern about the hids versus leds and space to install them, example, we have installed hids in the 2017 Yukon/Thaoe and low beams hids are extremely easy to installa, you can just use 3M Double sided tape and place it close to the low beams back housing, it has plenty of space, also for high beams, you can use our led kit and it fit all led kit inside the houisng high beams caps., no cables hanging down or anything like that.
Also our hid kit has been tested and is the only hid kit that works with latest 2013+ vehicles with no problems. We provide the only most advance hid kit in the market with no issues, no error messages or flickering. We also have tested this kit in the 2000+ years and its an amazing kit, super easy to install, all plug and play, direct fitment.
For any questions or concerns, you guys are more than welcome to ask me, I am here to help. Thanks