any OBD port reader that can read the Ford bus will provide the IAT2 temp. If you want to watch it and other info then I use this.
https://www.amazon.com/dp/B07JFRFJG6/?coliid=I3W44HYNJ3Z3OS&colid=34C8Y20JCA1M5&psc=1&ref_=lv_ov_lig_dp_it
Works great. Buy a cheap phone and you can just leave...
47,000 miles on my 2019 GT with Roush Stage 2 SC kit installed at 18,000 miles. Fram synthetic filter and Ford 5w-50 synthetic. uses less than 1/2 quart in 10,000 changes.
I don’t think the SC is different. It is probably a change in cooling, calibration and maybe the pulley. The 2020 Jack Roush edition makes the same 775 hp.