SOFTWARE HAS TO BE INSTALLED AT OUR PREMISES IN WIGAN.

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 4.2 FSI V8. APR’s ECU upgrade is available in octane-specific variations 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.

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

Not only does our Stage I ECU Upgrade give you higher peak numbers of 362 horsepower and 352lb-ft. of torque, but also gains of up to 15 horsepower!

Application Guide:

Vehicle                     Market Engine         Transmission

Audi S5 (B8) All         4.2L FSI V8         All