I am not positive, but I believe the ST comes with a sway bar that is a step up from the Titanium. I would think it would fit when getting all the mounting hardware from a dealer. Hopefully other members will know for sure.
MGP Caliper Covers, this is the company that makes them and I used them. I tried to cut and paste their website, but was not able too on my iPad. You can also just do a search using “brake caliper covers” and they will have a listing.
On your BCM replacement, did that correct your seat back not cooling/heat? I have the same issue and my Ford dealer has know idea why and has a call into a Ford engineer.
I have their tune and called and asked them that same question. I was told just to give them a call, it would help if you have your tuner hand held s/n number, they will look up your vehicle.