The holes in the TRD bumper are 4 inches in diamater, so ask him how big the fogs are. Yes, you can run them off the factory switch, that's what I did with my TRD fogs. If I were you, I'd bring them to a shop who knows what they are doing.silverCELICAgt-s said:I AM INTERESTED IN THE ANGEL EYE FOGS... only if they fit in the whole in the trd kit? are they as bright or brighter then the stock fogs. and can I set them up to replace my original fogs but to run off the switch that is built into the car?