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APR - ECU Upgrade - Audi S4 (B5) 2.7t, 2000 to 2002

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Please note that your vehicle must be present in order to program your ECU. To schedule an appointment, please feel free to contact us.

The ultimate chip upgrade for the S4 2.7t engine is available from NGP and APR. After months of long nights and many hours of dyno work at APR we are pleased to offer you chip tuning that is second to none. We have worked hand in hand with many customers to deliver a chip that works. Expect huge increases in low-end torque, improved throttle response and a smoother, more powerful top end.

The APR S4 2.7t chip is available in a 1.0 Bar configuration. The chip is designed to operate within the stock K03 turbochargers' efficiency range. Some APR chips are available in an octane specific version for the octane of gasoline that you typically run in your car. The power that the chip makes also depends on which ECU is in your vehicle. Multiple programs are available depending upon your ECU and year through EMCS hard chip or DirectPort Programming. Not all ECU's can accept multiple DPP programs, please email for more info.

Available programs:*

  • -Stock
  • -91 Octane
  • -93 Octane
  • -100 Octane
  • -Security Lock
  • -Throttle body Alignment / Fault Code Erase
  • -Anti-theft

 *Not all options are available for all ECU models.

 All APR chip upgrades use encryption, which serve several purposes. Mainly, it keeps prying eyes out of the software and prevents lesser companies from copying the chip and degrading the product. Also, all APR software is undetectable to a dealers VAG diagnostic tool.

All APR chip software comes with lifetime free updates. There is also a lifetime warranty against defects in the software. All chip upgrades have a 30-day Money Back Guarantee.


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