The Volvo XC60 T6 Polestar 310hp (2013 - 2017) produces 310bhp and 430Nm in standard form. Our Stage 1 ECU tuning file raises output to 345bhp and 490Nm, a gain of 35bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.