Noticed the stock fog lights on my 3sGT were no brighter than the parking lights, and they seemed to be pointing more to the ground that up the road, I decided to up the wattage of them, and look into aiming them up. Before I downloaded the Factory Service Manual, I searched YouTube, and found a video of how to replace the Fog Light Bulbs on my 2010 3.
Couldn't believe how easy it showed to be, and no bumper removal needed.
Researching the stock fog light bulbs are 9006 Halogen 51w white, (also referred to as H11 Bulbs). I have seen where others have used some yellow clear adhesive, to change the color, but why not just change the bulb instead? I opted for a higher wattage bulb, 100w and in yellow because I like to see and be seen without blinding on-coming traffic. Ebay sale had them shipped to me, new, for less than $7.00.
TMZ 9006 100W Low Fog Xenon HID Replace Yellow Light Bulbs Fast SHIP YI2 Al F188 | eBay
Once received, they did say 100w on the bulb housing, and they were not used or broken.
Once the rain stopped yesterday, changed out the 51w bulbs and also aimed the housings up. Looking into how the fog light works, I can see inside that there is a little ring/sleeve that the main part of the bulb goes into. I think this is why the stock bulb doesn't seem very bright. The majority of the light emitted is reflected from the back side of the assembly, and this and the sleeve takes away from the brightness of the bulb. Look at the 3rd series of pictures in the Ebay sale and you know what I mean:
2010 2011 Mazda 3 2 5L Fog Lamp Set Genuine Mazda BBM551680C BBM551690B | eBay
I don't see any way to remove that inner ring/sleeve. I am thinking this is a DOT Thing, as I see this reflective beam projection on other headlights too. Miss the days of glass headlights, and more powerful lighting, but it's all safety glass now.
Anyway, I installed the 100w bulbs and adjusted the housing up higher, and now I can see that they are on and off with the headlights on. Before I couldn't tell if they were on or not. My suggestion for brighter projection would be to remove the housings, and clean the insides out with warm soapy water, making sure not to scratch the inner reflective paneling, and also make sure the inside is dry. I have done this on other vehicles using tissue(Kleenex) and then lightly blow drying them out. Over time the exterior of the lenses can get pitted from debris hitting it, so just replacing them or trying to clean them up will make you light brighter.
Note: Just for the record, I have never had any burning/melying issues on any of my vehicles that I have upgraded the stock bulbs on that came with plastic housing,
This is an easy job and took less than about 45 minutes following the video posted above. Sorry no pictures.