APR is pleased to present the ultimate engine control unit (ECU) upgrade for the 1.8T EA888 Gen 3 engine and now supports the tiptronic Jetta, Beetle and Passat! APRโs ECU upgrade is available in octane-specific variations and is conveniently flashed to the vehicleโs factory ECU through the OBD-II port without any physical modification to the factory ECU. Read More!