The Suzuki SX4 1.4 Boosterjet 140hp (All) produces 140bhp and 220Nm in standard form. Our Stage 1 ECU tuning file raises output to 165bhp and 280Nm, a gain of 25bhp and 60Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.