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034Motorsport is proud to offer 034EFI Chip Tuning for the I5 20VT. Countless hours of dyno, street, and track testing go into each of our 034EFI tunes before release, to ensure an unparalleled driving experience.
The 034EFI AAN/ABY Stage 1+ Chip Tuning Package was developed to be the ultimate chip tuning solution for stock-turbo AAN engines found in the C4 Audi S4 & S6 (UrS4/UrS6) and ABY engine found in the later Audi S2. This chipset remaps the factory ECU's boost, timing and fueling to provide increased power without sacrificing reliability. Offers a broader powerband with huge increases in low-end torque, as well as significant gains in top-end horsepower.
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.