Lucas, great points! Trifecta claims they flash a tune without any PCM unlock. Do you know if they just Are they just adjusting pedal/throttle inputs? Or are they adjusting fuel and timing tables? The way it’s marketed it sounds more than just the former, and that would not be worth $500 to me. Quote from Trifecta: “- Its octane adaptive: Meaning this is not a '93 octane only tune'. This is a full fledged calibration for both he engine and transmission. You can use 87-93 octane as you see fit and the computer will self adjust power output. You will see best gains and MPG on 93 however. - You can flash back to stock at any time using our software. The factory calibration is included with the file we provide you so you can quickly and easily switch from Custom to Factory for any dealer visits - You have Driver Selectable Vehicle Modes: These are custom driving profiles we programmed into the calibration. You switch between them using the Cruise Control button. We include an ECO mode and a Performance mode you can switch back and forth to, on the fly. When CC is On you are in ECO mode. When CC is Off you are in the Performance mode “ Sent from my iPhone using Tapatalk