What Size?
 

hey guys whats up, well my girlfriend is buying a new 2006 Mazda3 Sedan in grey and we noticed that the car had OEM HID's and i was wondering what size bulbs they were because we plan to change them to make them white with a tint of blue in them. like in my car 2005 rsx type-s with MuCollouh 6000k HID kit.

i believe they are standard D2S. they seem to be the standard OEM size for most MFG.

personally i'd stick with the OEM, since "blue" HID don't give you a significant increase in luminosity. although they do look a heck of a lot nicer.

why would you even want to change the stock h.i.d. headlight bulbs. i would stick with them or piaa has h.i.d. replacement bulbs that are better looking (i think that blue look you are looking for) and brighter than the stock ones for around $200