Other Services, Tuning ToolsNew ‘How To’ uploaded! – Updating the SMG ECU to run CSL ‘255’ Software Posted on 22 February 2016 by ECUWorx 22 Feb For a definitive guide on how to update your SMG DME / ECU to run CSL ‘255’ software for improved shifting click here! ECUWorx How safe is flashing your DME over OBD2? Adding / Updating your VIN & AIF with Tool32