With the a stage 1 custom tune only, the Audi A5 2.0 TFSI quattro, peak power rose from 108kw at the wheels measured as 4wd to 145kw! Gains of 40kw were made midrange and continued throughout the rev range. Upgrade specifications 98RON fuel Etuners Stage 1 ECU remap Performance results Maximum wheel power: 145kW (measured