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APR’s RS6/7 Turbo ECU Upgrade for the C7 S6/7 4.0 TFSI

engineAPR’s RS6/7 Turbo ECU Upgrade is now available for the S6/7 4.0 TFSI!

APR’s RS6/7 Turbo ECU Upgrade is designed for use with Audi’s high output RS6/7 4.0 TFSI turbochargers, which are a direct bolt on to the factory S6/7 4.0 TFSI Engine. This upgrade offers 634 HP and 671 FT-LBS of torque on 93 octane fuel and 707 HP and 714 FT-LBS of torque with race fuel! The substantial increase in power and torque comes with lightning fast response and smooth daily driving that transforms the vehicle into a new class of enjoyment!

Working closely with our partners at NGP, who supplied the original test vehicle and offer the necessary hardware, APR’s Calibration Experts recalibrated the factory Bosch MED 17 engine management system to work seamlessly with the upgraded turbochargers, and offer a range of flexibility depending on vehicle modifications. Though the upgrade works well with with factory charge cooling, the ECU Upgrade is calibrated to take advantage of any cooling upgrades that are made. Additionally, the upgrade will work with the factory DPs, though output will be less than advertised.

APR’s RS6/7 Turbo ECU Upgrade comes with all the benefits and features, including APR EMCS Program Switching and APR Mobile, as found on APR’s Stage I and II ECU Upgrades, and is conveniently flashed through the vehicle’s OBD-II port.

APR’s RS6/7 Turbo ECU Upgrade Calibration Report
As Reported by Audi
Stock - 93 Octane AKI
As Measured by APR
91 Octane AKI
95 Octane RON
93 Octane AKI
98 Octane RON
100 Octane AKI
104 Octane RON
104 Octane AKI
108 Octane RON
- APR recommends and tuned with Sunoco GT 260 for 100 AKI mode and Sunoco GT 260 Plus for 104 AKI mode. Never use lower octane than specified by the mode.
- Max increases are based on APR's actual measured stock values and not those reported by VW. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades.
- Reported wheel figures measured using APR's in-house Dynapack Dynamometer with a US Spec C7 S6 with RS6/7 turbochargers, APR Cast Race DPs, factory cooling and factory intake, using SAEJ1349 correction and an average of multiple runs. Crank figures are estimated based on the measured wheel figures. Results may vary depending upon environmental conditions, vehicle, transmission, vehicle health, operating conditions, temperatures, fuel grade, dyno type, dyno setup, other variables and other modifications.
Speed Limit Max Speed Limited Max Speed Limited Unlimited Unlimited Unlimited Unlimited
Peak Horsepower (HP) 414 HP 480 HP 599 HP 634 HP 671 HP 707 HP
Peak Torque (FT-LBS) 406 TQ 451 TQ 617 TQ 671 TQ 708 TQ 714 TQ
Max Horsepower Gain     +140 HP @ 4,650 RPM +180 HP @ 4,750 RPM +209 HP @ 4,850 RPM +224 HP @ 4,850 RPM
Max FT-LBS of Torque Gain     +178 TQ @ 3,750 RPM +238 TQ @ 3,600 RPM +276 TQ @ 3,500 RPM +280 TQ @ 3,550 RPM

Requirements and Recommendations

  • Turbochargers:
    OEM RS6 / RS7 Turbochargers are required.
  • Intake:
    A high flow intake system, or drop in panel filter is recommended.
  • Exhaust:
    APR's Cast Race DPs are highly recommended and are required to meet the advertised power figures.
  • Cooling:
    Upgraded turbocharger air-to-water cooling is highly recommended.
  • Spark Plugs:
    APR's software is designed for use with NGK heat range 8 spark plugs gapped to 0.024" ±0.002" or 0.6mm ±0.05mm with a change interval of 10-15,000 mi or 16-24,000 km.
  • Transmission:
    APR's TCU Upgrade is highly recommended and is required to raise the factory rev limiter to achieve the advertised power figures.
Application Guide
Vehicle Market Engine Transmission
Audi S6 (C7) All 4.0 TFSI S-Tronic
Audi S7 (C7) All 4.0 TFSI S-Tronic

Please Note: An APR Dealer MUST check software availability and compatibility before purchase.

Stage Minimum Requirements Price
- Pricing: Please contact an APR Importer for pricing outside the USA.
- Program Switching: A fully loaded ECU includes up to 4 program modes (stock mode, performance modes, valet, etc), as well as fault code erase, security lockout and anti-theft depending on availability and ECU compatibility.
- Availability and ECU Compatibility: Stages, programs, and features may not be available for all ECUs.
- ECU Revision Notice: Multiple ECU revisions exist for each platform. APR software may be temporarily unavailable when factory updates are applied. An APR dealer can check availability in person, or over the phone if the ECU boxcode/revision is known.
APR’s RS6/7 Turbo ECU Upgrade - New Customer RS6/RS7 Turbochargers (See Requirements and Recommendations Above)
Buy Now$2,249.99
APR’s RS6/7 Turbo ECU Upgrade - Existing APR Stage I or II Customer RS6/RS7 Turbochargers (See Requirements and Recommendations Above) $1,249.99
- Add APR EMCS Program Switching (Fully Loaded) None No Additional Charge

How to purchase

APR DealerPlease use the APR Dealer Locater Tool to locate an APR Dealer, confirm availability and schedule an appointment.

Please note vehicle manufacturers issue many ECU part numbers and revisions throughout their vehicle lineup. As such, some ECUs may be temporarily unavailable as new parts and/or revisions are released. If the vehicle’s ECU part number and revision is known, availability can be checked at any APR Dealer.

warningWARNING: Cancer and Reproductive Harm. For a list of APR part numbers associated chemicals, go to https://www.goapr.com/prop65/. For more information, go to www.P65Warnings.ca.gov.

APR Tuned

Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: (334) 502-5180 Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801

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Notice: Products that affect emissions and do not carry a California Air Resources Board Executive Order are not for sale in California, USA. While we try to keep everything current, APR LLC is not responsible for errors in pricing on this web site. All prices are in USD and are applicable to the United States of America only.
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