R172 - 2011 ->
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Order This File Ask a QuestionThe Mercedes SLK 350 - 306hp (R172 - 2011 ->) produces 306bhp and 370Nm in standard form. Our Stage 1 ECU tuning file raises output to 320bhp and 390Nm, a gain of 14bhp and 20Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.