More-BHP.com show how they remap the engine on the new Audi A7 3.0 TDI. Power goes from 245 BHP to 295 BHP and torque increases from 500NM to 595NM. The latest EDC17 ECU in this car means that it can only be remapped by removing the ECU and TPROT 8/10 passwords need to be obtained before the flash memory can be read out.
