my older brother and i are thinking about putting foglights on his car

i have a guide on how to install foglights but i do not know the size i need, all i know is that they are the square ones..... has anybody done this and do you know what size to get

 

Give us some info on the car you want to install them onto! Then we can help.

 

umm its a 95 firebird, we actually went out and got a lamp kit from autozone that a guy did a write up on, we had to do alot of custom wiring but we got it done, ill have pics sometime not too far off