Unitronic Stage 1 91 Octane: 390HP / 350LB-FT STOCK POWER: 310HP / 325LB-FT Description Performance Software Precisely Engineered for a completely stock car.Performance Software for your ECU Box Code is subject to availability. Features Engineered with Strict Industry Standards Extensively Tested Under Various Driving Conditions Factory Safety Limiters Retained Optimized Responsiveness and Drivability Optimized Smoothness and Driving Comfort Power Delivery Perfectly Optimized Throughout the Power Band Improved Fuel Efficiency Speed Governor Increased to 300km/h Unitronic Stage 1 93 Octane: 415HP / 360LB-FT Description Performance Software Precisely Engineered for a completely stock car.Performance Software for your ECU Box Code is subject to availability. Features Engineered with Strict Industry Standards Extensively Tested Under Various Driving Conditions Factory Safety Limiters Retained Optimized Responsiveness and Drivability Optimized Smoothness and Driving Comfort Power Delivery Perfectly Optimized Throughout the Power Band Improved Fuel Efficiency Speed Governor Increased to 300km/h Ignition Timing Precisely Calibrated for Higher Octane Fuel Includes all Stage 1+ tune variants and all lower software stages as well. Unitronic Stage 2+ 93 Octane: 450HP / 385LB-FT Description Performance Software Precisely Engineered for use with Unitronic Pulley Upgrade Kit.Performance Software for your ECU Box Code is subject to availability. Features Engineered with Strict Industry Standards Extensively Tested Under Various Driving Conditions Factory Safety Limiters Retained Optimized Responsiveness and Drivability Optimized Smoothness and Driving Comfort Power Delivery Perfectly Optimized Throughout the Power Band Improved Fuel Efficiency Speed Governor Increased to 300km/h Ignition Timing Precisely Calibrated for Higher Octane Fuel Includes all Stage 2+ tune variants and all lower software stages as well. Required Hardware Supercharger Pulley Upgrade Kit For 3.0TFSI by Unitronic Related Hardware Pulley Removal Tool Kit for 3.0TFSI by Unitronic Oil and Additives Recommendation Unitronic uses and recommends Liqui Moly Oil & Additives exclusively for your vehicle, which meet Audi/VW approvals. To ensure your vehicle is maintained with the #1 oil brand in Germany, see what is recommended for you with the Liqui Moly Oil Guide.