The APR Stage I ECU Upgrade is the first step towards making more power! This simple upgrade requires no engine hardware modifications, and produces 415-435 HP with 434-464 FT-LBS of torque depending on fuel grade. Gains as high as 75-118 HP and 85-135 FT-LBS of torque are available throughout the power band, depending on fuel grade and factory output, making the vehicle exceptionally quicker in all scenarios. Now available all RS Q3 2.5 TFSI Models. Read more.