These lights are so worth it! Installed on a 07.5 Cummins 2500. Had to get a flicker kit, but I kinda assumed that would be the case. While I was at it, I also spliced in a diode to run High and low simultaneously when the high beam is on. Other then the flicker kit, zero issues! Low beam performance leaves you wanting more; High beam feels like its not even DOT legal! (Bright AF) Fit perfectly, and look minty!