It was a hot one today. During my 4th of 5 sessions, the best I could manage was a 2:50.21
Track: Circuit of the Americas, Austin, TX
Car: 2017 Ford Focus RS
- StopTech Sport brake pads front & rear
- Motegi Traklite 3.0 wheels w/ Falken Azenis RT-615k+ 235/45R18
- Borla ATAK exhaust
- Mountune triple pass radiator + silicone hoses
- STOCK power

Ambient temp was close to, if not over, 100 degrees F. Track temps were likely in the 120's. 
Yes, I can hear the thing flapping in the wind. It's something loose under my car. I never got flagged for it and nothing mechanical failed so I just sent it.