D-Sync Works is a Mercedes-Benz & AMG tuning platform by YD Auto Group: one phone app and one in-house Wi-Fi OBD dongle (the D1) for off-the-shelf Stage 1 / Stage 2 engine calibrations, the 9-speed gearbox TCU, the CPC NG, Airmatic ride height and coding, plus an adjustable Exhaust Burble Tuner, live data logging and encrypted custom-tune delivery for professional tuners.
D-Sync Works launched in 2026 as a new YD Auto Group project, built on 6 years of Mercedes ECU tuning at YD Motorsports — more than 400 ECU tunes for customers around the world. The team is based in Toronto, Canada, and develops the app, the D1 dongle and the calibrations in-house.
D-Sync owns 15 Mercedes development cars, at least one for every engine family we sell — M177 / M178 4.0T V8: AMG GT S (the track car), AMG GT C, AMG GT R, C 63 S Coupe (2018), E 63 S, GT 63 S, S 63; M157 5.5T V8: S 63; M279 6.0T V12: S 65 (2016); M256 3.0T inline-6: E 53, GLE 53, E 450, GLE 450; M276 3.0T V6: E 400 Coupe (2018); M133 2.0T inline-4: CLA 45. New calibrations are road-tested, run on the dyno and taken to the track on these cars first. The C190 AMG GT S is the Time Attack car: AMG GT1000 M178 power package engineered and calibrated in-house by YD, YD-built front and rear control arms, sealed composite underbody panels and an underbody aero guide kit, ECU flashed over OBD with the D-Sync app; driver James Houghton. It placed 3rd in the Unlimited class of CSCS 2026 Time Attack with a best lap of 1:11.11 at Toronto Motorsports Park (timed by Dragy Lap), and has a best lap of 1:23.892 at Canadian Tire Motorsport Park (Mosport).
Dyno sheets from the YD Motorsports Dynojet include an E 63 S on factory hardware and 93 pump fuel (645 awhp / 950 Nm), an AMG GT S at Stage 1 on 94 pump fuel (585 whp / 786 Nm), a 2020 C 43 with a high-flow exhaust and ECU tune (410 whp / 640 Nm) and an E 400 at Stage 2 with a 200-cell high-flow exhaust (404 awhp / 653 Nm). These were custom tunes for customers with their own hardware and fuel, measured at the wheels; the D-Sync OTS figures on this site are crank figures for factory hardware and pump fuel. More sheets: https://yd-motorsports.com/pages/tuning-results
Tuning a modern Mercedes used to mean handing the car to a shop and waiting. With D-Sync the owner buys a license, plugs the D1 dongle into the OBD port, opens the app, picks the tune and flashes — Stage 1 or Stage 2, from a phone over Wi-Fi.
Calibrations are validated on real cars and keep the factory safety parameters — knock protection, thermal limits, limp-mode triggers. The original factory calibration is saved automatically, so the owner can flash back to stock any time with one tap. Authorized dealers sell and support D-Sync locally; questions about a specific VIN go to duke@yd-autogroup.com.
Tune catalog · All supported cars · D1 dongle · For tuners · Authorized dealers · Contact: duke@yd-autogroup.com