Performance Stage 2 ECU Software Precisely Engineered for your 8V S3 with the 2.0T engine.  This vehicle has added support through UniCONNECT+ which allows you to program your own vehicle right in your own garage. Unitronic software is flashed directly through the (OBDII) diagnostic port of your vehicle (10-15 minutes). Features: Gains over stock: +105HP / +88TQ (93 Octane Fuel) Engineered with Strict Industry Standards Extensively Tested Under Various Driving Conditions Factory Safety Limiters Retained Engine Temperature Protection (Rev Limit based on Engine Coolant Temperature) Optimized Responsiveness and Drivability Optimized Smoothness and Driving Comfort Power Delivery Perfectly Optimized Throughout the Power Band Improved Fuel Efficiency Ignition Timing Precisely Calibrated for Higher Octane Fuel Speed Governor Removed Includes all Stage 2 tune variants and all lower software stages. Exhaust Overrun/Crackle Enabled with Stage 2 and up. Requires UniConnect+ cable. Subject to availability Hardware Requirements: Downpipe What's Included: Unitronic Stage 2 ECU Tune Unitronic UniCONNECT+ Cable (OPTIONAL)