The Mercedes SLK 200 (1.8T) 184hp (R172 - 2011 ->) produces 184bhp and 270Nm in standard form. Our Stage 1 ECU tuning file raises output to 210bhp and 380Nm, a gain of 26bhp and 110Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.