The Porsche Macan 2.9 GTS 440hp (2021 ->) produces 440bhp and 550Nm in standard form. Our Stage 1 ECU tuning file raises output to 510bhp and 730Nm, a gain of 70bhp and 180Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.