Hi, Exercising caution is a good sign, MS2PNP (8693)- correct? I’d dropped 2 links below to research it further, a link for integration to the specific Forum...there are are also basic Tuning forums here, on Stangnet.
TunerStudio lite is great Software, as is. If desired, you can eventually go to Pro, use their Wideband 02 setup/Controller. I’d run a Wideband 02(Air/Fuel mixture) Sensor/Gauge, anyway.,
A slightly modded Stock 5.0 Bin file is preloaded onto the MS2, meant to be a plug & play setup. If the Car is stock, or has mod’s not requiring Tune changes in order for it to run, you should have nothing but gains.
Just follow the instructions to the letter, use available resources, Xenocron’s a great spot for products or information , too.
When making any changes, start small & test. Jot down each step/change you make. Over a short duration, it’ll be easy.
Any programming snags, happy to help.
Good luck!
https://www.diyautotune.com/support/tech/install/ford/megasquirt-your-mustang-5-0/
http://www.tunerstudio.com/index.php/tuner-studio/tunerstudioms-menu