Hello
I have a bmw 525i 2002 and my low beam is a h7 factory bulbs but i want to upgrade to H.I.D.

But i dont know what HID kit to buy, i dont know if it is the same that h7 factory bulb, because the base between h7 halogen bulb and h7 HID bulb is different and I dont know if the hid bulb is going to fit.

thank you.

i would thank any help