APR Stage 1 ECU software for the applications below. Purchased and installed at Kies Motorsports; online standalone purchase is not offered.

Software price shown. Kies installation service: $150 additional. VIN and controller compatibility must be confirmed before scheduling.

Engine specification: EA824 V8 MPI. Match this engine and the manufacturer part number; the model name alone is not sufficient.

Application guide

• 20002007 Audi A6 Quattro NAR
• 19972007 Audi A8 Quattro NAR
• 20042005 Audi Allroad Quattro NAR
• 20042007 Audi S4 NAR
• 20022003 Audi S6 NAR
• 20012003 Audi S8 NAR
• 20042006 Volkswagen Phaeton NAR
• 20042006 Volkswagen Touareg NAR

Confirm VIN, exact engine/turbo specification, ECU box code and software revision with APR before installation. Software is purchased and installed at Kies only; $150 service fee is additional. No UltraLink device, APR Plus, unlock, TCU tune or hardware is included.

Performance results vary. Review the selected calibration, fuel requirements and vehicle condition with your tuner. No horsepower result is guaranteed.

Manufacturer part number: ECU-42L. Manufacturer application information.