I have a 02 Honda civic coupe ex does retrofitting apply to my headlight set up because I see nothing or a DIY for my civic every guy I know with a Honda tell me to go get a HID kit but Id rather retro fit mine if possible

 

im confused to your question? retrofitting usually requires modification on almost any vehicle?

 

Depend on what projector you want to use, a simple retrofited headlight doesn't take modification to the headlight at all.

 

yeah you can retro pretty much any vehicle.. you can use mini h1 or d2s for easy installation..