APR Stage 1 ECU Software Flash Tuning Audi B6 A4 1.8T


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The APR ECU Upgrade typically raises the power output of the 1.8T to 215 horsepower and 245 lb-ft of torque on 93 octane fuel! 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.

* Flipswitch available at an additional cost.

Operating Modes:

  • Exact OEM Calibration Stock Mode
  • APR 91 Octane Performance Mode
  • APR 93 Octane Performance Mode
  • APR 100 Octane Performance Mode
  • Valet Mode (Low power and speed)

Extra Features:

  • Fault Code Erase (FCE): Resets engine related fault codes.
  • Throttle Body Adaptation (TBA): Relearns throttle plate position and values.

APR Audi 1.8T ECU Upgrade Vehicle Fitment:

  • 2002 Audi A4
  • 2003 Audi A4
  • 2004 Audi A4
  • 2005 Audi A4

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, 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 - 1.8T (B6) (215/245-93)
Please contact us to schedule your appointment, installation takes about an hour.
all software

Product Reviews

Anonymous Mar 5th 2018

Can't thank you guys enough!

Just wanted to thank you for the quick and amazing work you guys did on my Audi B6 A4 this morning. I can't tell you how big my grin was on the way back to work! I can't wait to get back there for more future work. I'm super impressed at how fast and professional you guys are. Driving an automatic became fun again and I have you guys to thank for that. Keep up the awesome work!

Anonymous Mar 5th 2018

Stage 1+

Got my stage 1+ fully loaded program today. liking it so far!

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