Chip Tuning, C4 Audi UrS4/UrS6 & S2, AAN/ABY Stage 1

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, with our 3" exhaust this car picked up an additional 15 WHP.

Features:

• 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:

• High-Flow Silicone Turbo Inlet Hose
• Upgraded Front-Mount Intercooler
• Phenolic Intake Manifold Spacer
• 3" Performance Exhaust System (Highly Recommended)
• RS2 High-Output Exhaust Manifold
• Upgraded Bosch Fuel Pump
• High-Output Coil Kit
• Steel Throttle Cam
• Audi 7A Camshafts

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.

**Not for use on emissions controlled vehicles in California, off road, track, and racing applications only**