Sorry for lack of an update, but unfortunately I was in the process of returning these. I had a feeling that the fog light, I have the V6 Pony Pkg, would be a tight fit but once I got back there its surprising how little room there is between the wiring and radiator, enough that there's a heat shield to keep the wiring from burning up. Not sure if in the GT there's more space between the foglight housing and the radiator but I setup an RMA. The headlight bulbs I also had to send back as part of the bulb cracked during shipping. The bulbs are a no name china generic type, and only have 3 LED diodes, I learned that each diode is = 10W so to determine how many diodes a bulb has just divide the bulb W by 10. The bulbs only have diodes on a single side, as for brightness I did test one out in comparison to the stock bulb (stock 8 year old bulb still from factory) and yes it is far brighter and cleaner, although there is no high beam, it appears low beam is 2 diodes and high beam activates a 3rd diode which doesn't increase brightness. another issue also was these are very over priced, I sadly learned I payed more than double for each. So unfortunately I was dissatisfied with the results, but I feel there is promise for the technology. I'm hoping to do more research and find proper bulbs that will be fully compatible with the car and also address my concerns. for now I think its difficult finding a kit which will properly fit in a foglight grille mounted housing, but if you have foglights in the lower front bumper they might fit.