![Project Car: 2018 Audi RS3 - ECU Flash Stage 1 - APR 2.5 TFSI EA855 EVO ECU Upgrade](http://www.detailersdomain.com/cdn/shop/articles/APR_Stage_1_ECU_Tune_Audi_RS3_700x700_crop_center.jpg?v=1537743083)
Project Car: 2018 Audi RS3 - ECU Flash Stage 1 - APR 2.5 TFSI EA855 EVO ECU Upgrade
Project Car: 2018 Audi RS3 gets some more power! At first I was skeptical like most, as in I didn't want to flash the car due to warranty issues etc. But that seems to be the case with me on...