From Techart, another 60bhp and 130Nm
http://www.techart.de/en/techart-showroom/programs/fuer-911-turboturbo-s-991/aerodynamic-kit-i/engine.html
http://www.techart.de/en/techart-showroom/programs/fuer-911-turboturbo-s-991/aerodynamic-kit-i/engine.html