The Mazda 6 2.5 S-VT 170hp (2003 - 2008) produces 170bhp and 226Nm in standard form. Our Stage 1 ECU tuning file raises output to 180bhp and 240Nm, a gain of 10bhp and 14Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.