Here you go. They aren't a perfect fit, but I like them. The RTR side spiliters fit well though.
https://www.americanmuscle.com/rtr-quarter-splitters-2018-gt-ecoboost.html
Jacking rails, 4 jackstands and a jack make simple work to get all 4 corners up. I actually place a jack on each rail along with the stands if I'm getting under the car. I can get all four off the ground in 5 minutes, including setting up.
I purchased the Borla ATAK active three months ago and rec'd it a month ago. Your pictures OP are like looking at my exhaust system. I had the same bent tab, I had weld splatter on the actuator mount stud. My welds were marginally slightly cleaner than yours, but still not impressive by any...