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APR 2.5L ECU Upgrade

APR's tuning program for the Rabbit, Beetle and Jetta 2.5l presents new technologies and features found for the first time in APR's calibration program. APR's Engineering Team has spent numerous hours disseminating the Motronic Engine Management System to unlock new features in ECU customization and provide new options to further enhance the driving experience.

New Features Include:

  • Maximum Engine Speed Limit Raised to 6500 RPM
  • Left-Foot Braking Enabled for Simultaneous Throttle and Accelerator Input
  • Idle Raised to 750 RPM for Smoother Idle and Easier Initial Acceleration
  • Raised Standing Engine Speed Limit To 6500 RPM
  • Recalibrated Engine Braking Assist to Remove Overrun Hang
  • Speed Limiter Removed
  • Air-Fuel Ratio Calibrated for Maximum Power and Torque Delivery at Wide Open Throttle and Calibrated for Maximum Fuel Economy during Part Throttle Operation

Software Functions

  • APR's Patented DirectPort Programming Technology
  • APR's EMCS Functionality
  • Fault Code Erase/Throttle Body Alignment
  • Security Lockout
  • Anti-theft


  • Exact OEM Calibration Stock Mode
  • 91 Octane Performance Mode
  • 93 Octane Performance Mode
  • Valet Mode

Dyno Performance

APR dyno


  •  ECU Upgrades
  •  Beetle (1C/9C/1Y)
  •  Golf & GTI (MKV)
  •  Jetta & GLI (MKV)

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