SRM850 B9 S4 Hybrid Turbo utilizing a GTX3582R Gen 2 ball bearing cartridge.  

***Made to Order Minimum 6 week wait time***

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 3.0 TFSI!

APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to the 3.0T engine. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR’s optimization of the factory engine management system to take full advantage of the engine’s capabilities, without needing any end user adjustment. The software loads to the factory ECU through APR's CCD Simos 8.3 models.

APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 3.0 TFSI!

APR’s ECU Upgrades are the best dollar-per-horsepower modification one can make to the 3.0T engine. The upgrades dramatically increase horsepower and torque, making for an exceptionally quicker and more exciting vehicle. This is made possible through APR’s optimization of the factory engine management system to take full advantage of the engine’s capabilities, without needing any end user adjustment. The software loads to the factory ECU through the OBD-II port, resulting in a clean and headache-free install. Furthermore, for those looking for tuning with a limited powertrain warranty, APR Plus has you covered!

Unlock hidden horsepower and torque with our performance tuning software for your vehicle's Engine Control Unit (ECU).