The factory 24 watt fog bulbs in my 10A bumper were totally useless so I started looking for something to replace them with. Turns out that an H16 bulb will plug right in if you file off one little tab. I found a set of 35 watt yellow halogen fogs sold by Putco. Only 30 bucks so I thought I'd give them a try. Not spectacular but definitely worth the $30 upgrade.
Truck Lite Headlights and yellow halogen fogs.