I was doing a bulb upgrade to Silverstar Ultras in the headlights, and while looking at the bulbs on the shelf I noticed that the 9007 bulbs used in the headlights are identical to the 9145s used in the fog lights. The difference is the output, the 9007s are 65w and the 9145s are 45w. I bought the 9007s and the H11s for the headlight high and low beams.Then when I got home, I used the old stock 9007s to replace the 9145s that are in the fog lights. The physical dimensions and connections are identical. I am very pleased with the results. The headlights as well as the fog lights are both noticealbly brighter, especially the fogs.