I agree with drjoe356. Most of the time you won't even notice a change with either Softronic or the Cobb software in normal driving until you want to have some "fun." Of course, that is when you'd get lower gas mileage. If you opted for a more aggressive PDK map, is when you'd probably lose some gas mileage because of the higher rpm shift points.
2019 991.2 Turbo, Chalk / Espresso
Kline headers, 200 cell 3 inch GMG exhaust
Cobb AP Stage Two 93 octane tuned by Sam
Cobb PDK Tune
"Civilization Begins With Distillation." - William Faulkner