The Volvo S60 2.0 T5 Polestar 253hp (2015 - 2017) produces 253bhp and 400Nm in standard form. Our Stage 1 ECU tuning file raises output to 275bhp and 420Nm, a gain of 22bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.