Well overdue response (turned my email notifications back on). Ironically I bought these low(h11)/high(9005) for a 2018 Colorado but that unfortunately is no longer with me. They just so happened to also fir the 08 Limited. 20 minute installation and the low/high beams work great as-is. Diode...
I went with Diode Dynamics for low and high LED beams and it is like daylight. It's so good I have been delaying upgrading the fog lights to their LED's and doing the headlight fog light mod. Both still on my weekend list of things to do though.
