Close to 3 inchrd. the Hella 90mm projector modules fit pretty well. They're meant for a low-beam application but work well as fog/driving lights. You can find them on www.rallylights.com. You'll have to rewire to an H9 bulb though. I switched over to HIDs at the same time.
A forum community dedicated to Mazda 3 and all Mazda vehicle owners and enthusiasts. Come join the discussion about MazdaSpeed performance, modifications, classifieds, troubleshooting, maintenance, and more!