The Smart Roadster 0.7 Turbo 62hp (2003 - 2006) produces 62bhp and 95Nm in standard form. Our Stage 1 ECU tuning file raises output to 78bhp and 125Nm, a gain of 16bhp and 30Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.