Performance Stage 1 and Stage 1+ ECU Software Precisely Engineered for your B9 RS4/RS5.  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).

Unitronic Stage 1 Performance software is precisely calibrated for use with 91 AKI / 95 RON fuel.

Unitronic Stage 1 TCU Performance Software (FREE) is required to run Stage 1, 1+ and 1+E85 ECU tune.

Subject to ECU Box code availability.

Features:

• Gains over stock: +67HP / +96TQ (91 Octane Fuel) (Stage 1)
• Gains over stock: +93HP / +109TQ (93 Octane Fuel) (Stage 1+)
• Engineered with Strict Industry Standards
• Extensively Tested Under Various Driving Conditions
• Factory Safety Limiters Retained
• Advanced Torque Management by Gear (For maximum acceleration)
• 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
• Hardware Requirements: None

What's Included:

• Unitronic ECU Tune
• Unitronic UniCONNECT+ Cable (OPTIONAL)