APR Stage 1+ ECU Upgrade Now Available for the B9 RS4 and RS5

04/14/2021
10 min read

APR Stage 1+ ECU Upgrade Now Available for the B9 RS4 and RS5

04/14/2021
10 min read

APR Stage 1+ ECU Upgrade is now available for the B9 RS4 and RS5 2.9 TFSI EA839 V6! This update includes all of the new updates available in the recent v1.3 update, including enhanced launch control, driveline protection, and cold start, while adding support for the new APR High Pressure Fuel Pump (HPFP).


On our E85 program, this new update delivers up to 561 HP and 608 FTLBS of torque. That’s +138 AWHP and +169 AWFT-LBS over stock, and +37 AWHP and +50 AWFTLBS over APR Stage 1 on E85. For all other octanes Stage 1+ delivers the same power as Stage 1, but allows you to properly use our HPFP upgrade.


This new stage is free for existing APR ECU Upgrade customers and is now available across the globe.


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