APR Stage 1 ECU Software Flash Tuning Audi RS3 and Mk3 TTRS 2.5T


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The APR ECU Upgrade typically raises the power output of the 2.5T to 459 horsepower and 451 lb-ft of torque on 91 octane fuel with gains of 66 horsepower and 88 Lb-ft of torque in the midrange! Expect improved throttle response and a smoother, more powerful top end with no loss of drivability or reliability.

APR software can be loaded with up to four user selectable Operating Modes as well as Extra Features. APR's Flipswitch technology allows switching of Operating Modes or activation of Extra Features in seconds using the cruise control stalk with no need to purchase external hardware. Mode switching can also be performed via your iOS device with the APR Mobile Dongle (sold separately).

Operating Modes:

  • Exact OEM Calibration Stock Mode: 420HP / 372 TQ
  • APR 91 Octane Performance Mode: 459HP / 451 TQ
  • APR 93 Octane Performance Mode: 476HP / 470 TQ
  • APR 100 Octane Performance Mode: 516HP / 498 TQ
  • APR 100 Octane Performance Mode: 524HP / 506 TQ
  • APR E85 Performance Mode: 542HP / 500 TQ

Extra Features:

  • Fault Code Erase (FCE): Resets engine related fault codes.
  • APR Mobile Dongle Support: Allows use of the APR Mobile Dongle (purchased separately) to switch Operating Modes, read and reset fault codes, view real time parameters, and perform data logging.

APR Audi MQB 2.5T ECU Upgrade Vehicle Fitment:

Installation can be performed at our facility by appointment, just give us a call at 425-895-0000 or email Service@Achtuning.com to schedule. With APR's DirectPort ECU tuning the ECU can be programmed in around 60 minutes, no ECU removal or soldering is required.

We recommend that ECU chipping be done at your nearest APR distributor, this will offer you the best technical support available. Check The APR Dealer Locator to find your closest APR dealer.
Installation of Security Lock Out and Anti-Theft is not available at Achtuning.

All APR ECU software comes with lifetime free updates (labor charges may apply). APR provides a lifetime warranty against defects in the software. All APR ECU upgrades have a 30-day Money Back Guarantee.
APR ECU Upgrade - 2.5 TFSI (MQB) (459/451-91)
Please contact us to schedule your appointment, installation takes about an hour.
all software

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