APR Audi S6 and S7 4.0 TFSI V8 ECU Update 1.1

/ / APR, Automotive, Latest posts

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 4.0 TFSI V8. APR’s ECU upgrade is available in octane-specific variations, including and is conveniently flashed to the vehicle’s factory ECU through the OBD-II port without any physical modification to the factory ECU. APR’s EMCS functionality puts the control of the engine’s operation at your fingertips and allows for additional features and options to be installed to the OEM ECU.

The ECU’s MED 17 engine management system is responsible for proper operation of the engine during constantly changing environmental and load conditions. With built in compensational data for environmental variables and varying load conditions, the factory ECU is far more complex and intelligent than units found in other vehicle makes and marques.

APR’s Calibration Engineers spent months calibrating the engine management system, including many hours of chassis dyno development. With a thorough understanding of the ECU’s torque structure, APR’s Calibration Engineers properly increased engine load to produce more power and torque across the entire power band. APR’s ECU Upgrade increases boost pressure, optimizes ignition timing, cam timing, lambda and more to produce higher output!

APR’s ECU Upgrades provides an excellent leap in horsepower and torque while retaining OEM knock control sensitivity and other built in safety features. This results in an exciting and powerful upgrade, optimized for various fuel grades found around the world

APR Stage I ECU Upgrade


The APR Stage I ECU Upgrade gives you higher peak numbers of 563 HP/627 FT-LBS on 93 (R+M)/2 octane and up to 578 HP/635 FT-LBS on 100 (R+M)/2 octane race fuel! As much as 138 HP and 198 FT-LBS of torque are available through the power band!


APR dyno

APR Stage I ECU Upgrade Calibration Report
Reported by Audi
Stock – 93 AKI
Measured by APR
91 AKI
95 RON
93 AKI
98 RON
100 AKI
104 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 Audi. | RON = ROW Fuel Grades | AKI = North American (RON+MON)/2 Fuel Grades.
– Reported wheel figures measured on APR’s in house Dynapack Dynamometer with a US Spec 2013 S7 S-Tronic, 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
Peak Horsepower (HP) 420 HP 480 HP 553 HP 563 HP 578 HP
Peak Torque (FT-LBS) 406 TQ 451 TQ 588 TQ 627 TQ 635 TQ
Max Horsepower Increase over Stock* +108 HP @ 3,850 +125 HP @ 3,800 +138 HP @ 3,850
Max FT-LBS of Torque Increase over Stock* +155 TQ @ 3,500 +187 TQ @ 3,250 +198 TQ @ 3,350


APR Acceleration
APR Acceleration Tests

Program Mode 0-60 MPH 0-100 MPH 62-124 MPH 60-130 MPH 1/4 60′ 1/4 ET 1/4 Trap Speed
Data collected with version 1.0 at the same location via a Racelogic P-Box and at an IHRA Certified Drag Strip with launch control, ESP/ASR off, Dynamic mode and Sport mode. May not be comparable to data collected in other locations.
Best Measured Stock – 93 (R+M)/2 Octane 4.06 sec 9.24 sec 9.56 sec 11.32 sec 1.713 sec 12.216 sec 112.42 MPH
Best Measured APR Stage I – 93 (R+M)/2 Octane 3.52 sec 8.32 sec 8.51 sec 9.93 sec 1.656 sec 11.628 sec 117.83 MPH
Acceleration Testing – Stock vs APR Stage I 93 Octane

Quarter mile Testing – Stock vs APR Stage I 93 Octane


Application Guide
Year Vehicle Market Engine Transmission Drivetrain
2012+ Audi C7 S6 ROW & North America 4.0 TFSI V8 S-Tronic Quattro
2012+ Audi C7 S7 ROW & North America 4.0 TFSI V8 S-Tronic Quattro

Stage Minimum Requirements Price
– Program switching may not be ablable for all vehicles.
– Pricing applicable to the USA only. If outside of the USA, please contact an APR Dealer and Importer for pricing.
– 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.
APR Stage I ECU Upgrade None $1,499.00
Program Switching Price
– Add a Second Program Mode Included at no charge
– Add a Third Program Mode Included at no charge
– Add a Fourth Program Mode Included at no charge
– Add APR Fault Code Erase Option Included at no charge
– Add APR Security Lockout Option Included at no charge
– Add APR Anti-Theft Included at no charge