SCT Performance X4 Power Flash Tuner for Ford Vehicles (7015)
Compatible with:
1996 to 2020 Ford Mustangs (V6, V8, & EcoBoost V6 Engines)
1997 to 2019 Ford Super Duty F250/F350
1997 to 2019 Ford F150
2013 to 2018 Ford FOCUS ST
2016 to 2017 Focus RS
And many other Ford Cars & Trucks.
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Brand new will run you $350-$400.
This was used on a 2000 Ford Lightning with a bunch of upgrades. Sadly, it got completely totaled, so this is no longer needed.
Edit: *This is a high performance tuner, NOT an OBD2 scanner*