APR B9 S4/S5/SQ5 ECU Upgrade Version 2.0 Now Available!

06/16/2022

APR B9 S4/S5/SQ5 ECU Upgrade Version 2.0 Now Available!

06/16/2022

We’ve updated our 2018+ Audi S4, S5, and SQ5 (B9) 3.0T ECU Upgrades to deliver more power and torque! This update brings a host of additional features, including new safety features built into the ECU, optimized driving behaviors for a smoother driving experience, and other enhancements designed to take advantage of our bolt on modifications. Expect +103-151 AWHP and 190-249 AWFT-LBS of torque over stock just by adding our ECU upgrade an corresponding fuel grades. Expect even more by adding our intake and intercooler. This update is now available at all APR dealers and applies to both APR Plus and APR Stage 1. There is no charge from APR for this update - Please call your dealer for details.

  • Delivers up to 411 HP with 551 FT-LBS (APR Plus)
  • Delivers up to 411-491 HP with 551-629 FT-LBS depending on octane (APR Stage 1)
  • Max gains of +103 AWHP and +190 AWFT-LBS (APR Plus)
  • Max gains of +103-171 AWHP and +190-249 AWFT-LBS depending on octane
  • Supports 91 AKI, 93 AKI, 100 AKI, 104 AKI, and E60-E85 fuel grades (APR Stage 1)
  • Optional factory term limit matching limited powertrain warranty with APR Plus
  • Standing RPM soft limiter increased
  • Left-foot braking / brake boosting added
  • Properly rescaled performance gauges
  • Optimized launch control strategy for faster response and boost building
  • Optimized driveline protection during launch
  • Optimized thermal management and additional protection
  • Optimized exhaust crackle temperature safeties
  • Optimized high-gear LSPI protection and turbocharger protection added
  • Optimized the factory volumetric efficiency low end torque fluctuation
  • Speed limiter removed
  • Increased rev limiter for use with TCU upgrades
  • Exhaust flaps recalibrated to provide better performance and increase sound during free-rev
  • Auto start-stop defaults to the off position
  • No hardware required (Software only)
  • Supports standard bolt on modifications to further increase outpu
  • Eliminated the need for a TCU upgrade to achieve full torque
  • Free lifetime updates
  • Direct OBDII port flash (No ECU removal)
  • 30 day money back guarantee
APR B9 S4/S5/SQ5 ECU Upgrade

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