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APR - ECU Upgrade - Audi A8 4.0 TFSI V8


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 Audi A8 4.0 TFSI V8 engine is now available from NGP and APR.

After months of long nights and many hours of testing, developing and more testing, we’re pleased to offer you an ECU recalibration that is second to none. APR’s extensive research and development provides you with a powerful ECU upgrade with no loss of drivability or reliability. Expect faster acceleration, improved throttle response and more power across the entire power band.

APR’s 4.0 TFSI V8 ECU Upgrade is an expertly recalibrated engine control strategy that primarily remaps the engine's operating parameters, within the factory ECU, to provide smooth and reliable power as if intended by the OEM.  APR’s ECU Upgrade is developed to work within the OEM and Tier 1 Supplier specifications for engine component stress tolerances and performance specifications. Available in octane-specific variations, APR’s calibrations allow you to take advantage of fuel quality available in your area. APR’s patented EMCS functionality puts the control of your engine’s operation at your fingertips and allows for additional features and options to be installed to your OEM ECU. 

Stage I ECU Upgrade

The APR Stage I ECU Upgrade gives you higher peak numbers of 545 HP / 629 FT-LBS on 93 (R+M)/2 octane and up to 578 HP / 679 FT-LBS on 100 (R+M)/2 octane race fuel. As much as +127 HP and +175 FT-LBS of torque are available through the power band! APR’s ECU Upgrade is the best power per dollar modification for the new 4.0 TFSI V8 and gives it just the extra edge these cars lack from the factory without pushing the limits. With factory-like smoothness and drivability, APR’s ECU upgrade will fill the void in an otherwise excellent car.

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.

As Reported By Audi
93 Octane
As Reported By APR
93 Octane
Stage I
91 Octane
Stage I 93 Octane
Stage I 100 Octane
*Stock as reported by Audi
**Stock as measured and estimated by APR using 93 (R+M)/2 fuel.
Rev Limit 6000 RPM 6000 RPM 6700 RPM 6700 RPM 6700 RPM
Speed Limit Max Speed Limited Max Speed Limited Unlimited Unlimited Unlimited
Peak Power (Horsepower) 420-435 HP 456 HP 530 HP 545 HP 578 HP
Peak Torque (FT-LBS) 444 TQ 506 TQ 586 TQ 629 TQ 679 TQ
Max HP Over Stock (Horsepower)     75 HP @ 6000 RPM 90 HP @ 5250 RPM 127 HP @ 4900 RPM
Max TQ Over Stock (FT-LBS)     88 TQ @ 3300 RPM 129 TQ @ 3200 RPM 175 TQ @ 3050 RPM

APR Mobile

APR Mobile installs on smart phones, tablets and other devices and provides a wireless connection to the vehicle’s engine control unit or ECU. Once connected, the device can be used to access APR’s EMCS program switching features, read and clear fault codes and data log the ECU at high data rates not found on other commercially available tools. The app can also be used to access APR’s latest news articles, locate dealers in APR’s network and review previously saved data logging sessions.

You will need to purchase an APR Mobile Bluetooth Dongle to connect your mobile device with your car. Please check out this post for more information on the APR Mobile App.

Security, Warranty and Money Back Guarantee

All APR ECU Upgrades are fully encrypted to prevent theft of our valuable and proprietary coding information by lesser companies and to include protection to our clients by keeping the upgrade undetectable to a dealership's VAG diagnostic tool.

All APR ECU Upgrades include a limited lifetime warranty against defects in the software and to provide free updates and reflashes as they become available. Installation may be additional and is not included in the warranty.

All APR ECU Upgrades offer a 30 day money back guarantee with no questions asked. If for any reason you are unhappy with your APR ECU Upgrade you may return the upgrade to your place of purchase for a full refund provided you are within a 30 day period from your time of initial purchase. Installation is not included in the guarantee and is at the discretion of the place of install.

More Information
Brand APR
Stock Type N/A
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