The aFe POWER SCORCHER BLUE Power module is the next generation of Plug and Play electronic module technology. It is the fastest way to safely gain significant horsepower, torque and improve drivability without modifying or leaving any trace on the Engine Control Unit (ECU). The SCORCHER BLUE features an LED control switch for in-cabin, on-the-fly power adjustments with different preset modes. With Bluetooth connectivity you can tap into your iOS or android device to make power adjustments, custom tune different power modes, view gauges for engine parameter s, upgrade to the latest revision, measure acceleration times and more. The app is downloadable for free on the APP Store or Google Play store. Increases Power and Performance: The SCORCHER BLUE Power module increases turbo boost and overall vehicle performance producing double-digit power gains on our in-house dyno. Direct Plug and Play Power: Designed with factory style connectors, it easily connects to engine sensors for a quick and simple install. The LED control switch can be routed through the firewall into the cabin or connect to the module via Bluetooth with the smartphone app. On-the-Fly Power Adjustments: 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 TMAP). 4-Power Settings: This Power module have 4-power settings loaded and identifiable with the LED light on the switch or smartphone app. Stock (Green), Sport (Yellow), Sport+ (Orange) and Race (Red). SCORCHER BLUE Bluetooth Capable Power Module BMW M2 Competition/M3/M4 (F80/82/83/87) 15-19 L6-3.0L (tt) S55 BMW M3/M4 (F80/F82/F83) 15-18 L6-3.0L (tt) S55