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.