Thanks for the info. I ended up getting them from the dealer anyway. With shipping factored in, onlinemazdaparts.com wanted $10.81 each for them and the dealer wanted $10.87 each. Since I was a little unsure about whether or not onlinemazdaparts.com had the right part I figured I'd just go with the dealer since it was so close in price. Hopefully now I'll have brighter headlights with the H7 bulbs than using the 9003 bulbs that fit the socket without the adapter.