I was planning to put a light bar in the same spot till I found out moving to VA meant I had to put on a front lic plate, which blocks the middle of the slot. So now thinking maybe to smaller like 8" lights on either side. I was also thinking if I got the roof rac I could mount a full size bar under the cross beam so it would blend in and light would spread much better from that height.
I drive through really bad deer county 45 miles every night on the way home from work, so the more light the better.
I think why someone asked the op which lights he had was because the stock led lights on the 2016 gt are pretty amazing. Sometimes the reflection off big highway signs is blinding. Other threads have talked about just buying the lights and putting them in I think.