2017 BMW 335xD in with us today for our DR Ecu software and performance Intercooler upgrade. The six cylinder, twin turbo 3.0D BMW power plant now producing over 402Hp peak, and offering 743nm of torque on tap, gaining an impressive 154Nm over stock, the DR tune offers smooth usable power across the rev range, totally transforming the iconic german performance diesels driving characteristics, and improvements in fuel economy with the revised DR calibration.