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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.
Version 1.1 is now available for the S6 and S7 4.0 TFSI offering more power and torque, as well as a smoother, more refined, driving experience. APR’s engineers have unlocked 627 ft-lbs of torque and 563 horsepower with this new Stage I ECU Upgrade with as much as 187 ft-lbs and 125 horsepower over stock on 93 octane! Those looking for even more power can use the 100 octane race fuel mode to boost output to 635 ft-lbs and 578 horsepower! The upgrade is offered for free to existing APR ECU Upgrade customers and is available at dealers worldwide. Please visit our product page for more details.
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.
More Information: GoAPR.com