Unitronic Stage 2 ECU Tune B9 A4 2.0T

Free ShippingSave 20%
UnitronicSKU: UNI-S2-B9A420 DIY Difficulty: EASY

Select Flashing Tool: -

$600 $750

Direct Ship!

Buy Now & Pay over time with

Product Questions & Answers

Product Questions & Answers

Be the first to ask a question!

Ask a Question


Performance Stage 2 ECU Software Precisely Engineered for your B9 A4 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).


  • Gains over stock: +85HP / +84TQ (91 Octane Fuel)
  • Gains over stock: +93HP / +101TQ (93 Octane Fuel)
  • Optimized Responsiveness, Smoothness, Drivability, and Comfort
  • Ignition Timing Precisely Calibrated for Higher Octane Fuel
  • Optimized Maximum Output
  • Factory Safety Limiters Retained
  • Power Delivery Perfectly Optimized Throughout the Power Band
  • Speed Governor Removed
  • Improved Fuel Efficiency
  • Engineered with Strict Industry Standards
  • Extensively Tested Under Various Driving Conditions
  • Includes all Stage 2 tune variants and all lower software stages as well
  • Hardware Requirements:
    • Intercooler Upgrade
    • Intake System
    • Downpipe
    • Stage 2 TCU Software Upgrade

What's Included:

  • Unitronic Stage 2 ECU Tune
  • Unitronic UniCONNECT+ Cable (OPTIONAL)

Vehicle Fitment

Model   + Drivetrain  
B9 A4 2.0T I4 +

Payment & Security

Amazon American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard PayPal Shop Pay Venmo Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Calculate Shipping

You may also like

Recently Viewed