Unitronic Stage 1 91 Octane: 355HP / 338LB-FT STOCK POWER: 292HP / 280LB-FT Description Performance Software Precisely Engineered for a completely stock car.Subject to ECU Box code availability. Features 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 Speed Governor Removed Unitronic Stage 1+ 93 Octane: 375HP / 350LB-FT Description Performance Software Precisely Engineered for a completely stock car.Subject to ECU Box code availability. Features 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 1+ tune variants and all lower software stages. Unitronic Stage 2 93 Octane: 397HP / 368LB-FT Description Performance Software Precisely Engineered for use with an upgraded exhaust system.Subject to ECU Box code availability.REQUIRES UNITRONIC STAGE 2 DSG SOFTWARE FOR DSG EQUIPPED VEHICLES. Features 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. Required Hardware Unitronic Performance Downpipe 2.0 TSI MQB EA888.3 AWD Recommended Hardware Carbon Fiber Intake System With Air Duct For 1.8/2.0 TSI Gen3 MQB Charge Pipe Upgrade Kit For MQB Intercooler Upgrade Kit for 1.8 and 2.0 TSI Gen3 MQB and 8Y S3 by Unitronic MQB Turbo Inlet Elbow