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Stage 1 Performance Tune | RS3/TTRS 2.5TFSI

Unitronic

Stage 1 Performance Tune | RS3/TTRS 2.5TFSI

PART#: UNI-2.5TFSI-STG1-Tune

$900.00

With Uniconnect+ or for Local Install "Ships in" reflects an estimated lead time before this item will leave via the shipping method selected. Please Note: Selecting an expedited shipping method during the checkout process will not change the "Ships in" time frame.

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The perfect starting point for your RS3. Unitronic Stage 1 ECU Performance Software is precisely engineered for a completely stock car — no hardware modifications required. Just flash and go, with immediate, real-world gains you'll feel from the first drive.

Software can be flashed at our location in Cornelius, NC (just north of Charlotte) or at home using the Unitronic UNIConnect+ Cable.

Power Gains

Fuel
Power
Torque
Gain
Stock
400 HP
354 lb-ft
—
91 oct / 95 ron
476 HP
469 lb-ft
+76 HP / +115 lb-ft

Features

  • No Hardware Required — Engineered for a completely stock vehicle. Flash and drive.
  • Speed Limiter Removed — Factory top-speed governor deleted from the ECU.
  • Optimized for Higher Octane Fuel — Ignition timing precisely calibrated to extract maximum energy from 91 oct / 95 RON fuel.
  • Improved Fuel Efficiency — Optimized timing and injection in cruising conditions allows for better fuel economy under normal driving.
  • Broader, Flatter Torque Curve — Maximum torque is achieved sooner and held longer, resulting in a smooth, linear powerband and stronger real-world acceleration.
  • Reduced Low-End Lag — Improved throttle response and engine responsiveness throughout the entire rev range.
  • OEM Safety Systems Retained — Factory fail-safes remain active for long-term reliability.
  • Extensively Dyno & Road Tested — Developed on Unitronic's in-house Maha chassis dyno, then validated in street and track conditions across multiple vehicles before release.

Important Notes

  • Software availability is subject to your ECU box code.
  • 2019+ models may require the hood open during the flashing process.
  • This tune is calibrated for 91 oct / 95 RON fuel only. Using a higher octane fuel will yield additional power and efficiency gains.

Recommended Hardware & Software

Flashing at home? The Unitronic UNIConnect+ Cable is required and not included with this software purchase.
Unitronic
ABOUT THE BRAND

Unitronic

Based in Montreal, Canada, Unitronic writes ECU and DSG software for VW and Audi engines and sells matching hardware such as intakes, intercoolers, and turbo upgrades. Stage 1 and Stage 2 calibrations for 1.8T, 2.0T, and 3.0T applications are its core products.

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Vehicle Compatibility

4 applications