aFe Scorcher Blue Power Module 20-21 GM Trucks/SUVs L6-3.0L (td) LM2aFe Scorcher Blue Power Module 20 21 GM Trucks SUVs L6 3. 0L (td) LM2 In Cabin, on the fly power adjustments can be made to accommodate your driving needs. Select one of four power settings on the in cab LED control switch or control the module remotely via the free iOS or android app. The smartphone connects to the module via Bluetooth and displays engine parameters (MAP and engine load). This Power module have 4 power settings loaded and