We provide ECU remapping and tuning files for Audi RS3 8V Mk2 - 2017 -> 2019 RS3 2.5 TFSI vehicles. Elite Remaps specialise in ECU (Engine Control Unit) remapping, also known as ECU tuning or chipping. This is a process that involves the modification of a vehicle's engine management software to optimise its performance and efficiency. Below you can see what vehicles are supported and you can search for full performance details using our search form.