Well, just got in from replacing the oem bulbs in my 2014 2500. I took pics last night and will again get pics tonight after the replacement. As for now, I think there will be a distinct difference if looking into the lamp is any indication. oem, sort of bright and with the Sylvania H11 Ultra, definitely hurts the eyes. Hope the pics will show the difference. May even go for a short drive to see the road effect as well. Also, knowing what I know now, the bulbs are quite easy to get to and replace. After about 30 minutes of attempting to get the lamp tab to clear the slide lock discovered that after releasing the slide lock and then pulling the ball from the socket at the rear bottom, then and only then, will the tab clear the slide lock. After installing the new bulbs, I used a bit of spray white grease on the ball socket. Should help if I have to replace the bulb again. Also note, the inner lower mount bolt is about 1 1/2 inches long and probably will be difficult to pull out. Did pull the first one using a brake spring plier as it is down about 12" and not room for a hand. Maybe, a "good" mechanical finger will have enough strength to pull it??? Hope to post night pics soon.