I've always replaced the headlight bulbs with Silverstar by Sylvania they are a heck of lot brighter than stock bulbs. I've been kinda lost because they weren't available for my 06 350 with the H13 or 9008 bulb. They were just put on the market this week, I picked up a set at Autozone the only set they had. But I'm just posting this for others that need this size and to let you know it's now available on a limited basis.