COVID19 Update: Delays in shipping still exist due to the COVID19 situation, please email us if your parts are urgent, and we can advise more accurate delivery times.


Add your deal, information or promotional text

Chip Tuning, C4 Audi URS4/URS6 & S2, Aan/Aby Stage 1

SKU: 034-103-2609

Manufacturer: 034Motorsport

Suitable for all AAN/ABY engine ECUs in C4 S4 and S6 and later S2, stock turbo Audis. Uses stock FPR, injectors and wastegate spring.

We recommend this tune for all motors with stock internals, upgraded engine rods or pistons not required.  User feedback has been that the chipset feels smooth like stock but with vastly increased power, fuel mileage under light load same as stock. 

For users looking to get the most out of the stock K24 turbo, consider our Stage 1+ which uses larger injectors, MAP Sensor and a stiffer wastegate spring, with our Stage 1 on stock injectors this is the farthest the tune can be pushed before running beyond the safe limits of the factory injectors.

Dyno Chart shown below is a bone stock car with only our chipset and a 3" exhaust. This car picked up an additional 15 WHP.


  • Dyno Proven 205 WHP & 224 WTQ (Gains of 23 WHP & 32 WTQ Over Stock AAN)
  • Broader Powerband & Improved Throttle Response
  • 19-20 PSI Peak Boost, Tapers to 14 PSI at Redline
  • Redline Increased to 7000 RPM
  • Air/Fuel Ratio:
    • 11.5-11.8 Under Boost
    • 14.7 Under Light Load & Idle Conditions
  • Recommended for 91-93 Octane Fuel

What's Included:

  • 034EFI Stage 1 Chipset (Boost & Timing/Fuel Chips)

Recommended (Optional) Supporting Modifications:

Note: We now only ship chips which can be installed by the user or an ECU specialist, we no longer offer the service of shipping in ECU's and modifying them.




  • This product is sold for racing and off-road use only.
  • This product is not CARB or EPA compliant, this product is not authorized for use in California on smog controlled vehicles.
  • By purchasing this product, you understand this product is sold for competition use on closed roads and is not legal for use in highway or street vehicles.