What size of hid light can i fit on my 1990 toyota corolla?

-Check Ebay.

Type 1990 Corolla HID

You will get a lot of options to choose from

and it tells you the size as wellYou will have to pull your stock headlights off and measure the housing. This way you can find the right HID projector to retrofit into your stock housing. Mind you, that a 1990 Corolla headlights are probably going to be very yellowed, so finding a new set of clear lenses will be imperative. This conversion is also not for the faint of heart, because you will have to buy brand new headlights, then cut them up to attach the HID projectors. This isn't an easy process because they have to be lined up perfectly and can take a lot of work. Then, once the housings are modified and sealed properly, you can affix the wiring for the HID ballasts and resistors and put the headlights back on the car.



Any other so-called "HID Conversion" is not only not real HID lighting, but is also illegal.

Here's the National Highway Traffic Safety Administrations article on the "direct fit HID Upgrade" type kits and why they are illegal.

http://www.nhtsa.gov/cars/rules/rulings/鈥?/a>