D-Sync Works
450 / 500 / 550 series (M278) ECU Tune — Stage 1 / Stage 2
450 / 500 / 550 series (M278) ECU 调校程序 · 一阶 / 二阶 · 手机刷写 · $839 USDAvailable now
The 450 / 500 / 550 series (M278) runs the Mercedes M157 / M278 5.5T / 4.7T V8 Biturbo engine. Stage figures for this model are being finalized — email duke@yd-autogroup.com with your VIN for current numbers.
| Power / Torque | |
|---|---|
| Stock | TBA |
| Stage 1 | TBA |
| Stage 2 | TBA |
All gains validated on real cars. Factory safety parameters preserved.
How flashing works
Every tune is flashed over the OBD port from your phone: plug in the D-Sync D1 Wi-Fi dongle, open the D-Sync app, pick Stage 1 or Stage 2, and flash. No laptop, no bench, no shipping your ECU. Your factory calibration is saved automatically — revert to stock with one tap, anytime.
Pricing & ordering
$839 USD — includes the license and the D-Sync D1 Wi-Fi dongle, covering one VIN. Free shipping & customs clearance to all supported regions.
Email your VIN to duke@yd-autogroup.com so we can confirm tune availability for your exact ECU version before you pay.
Other M157 / M278 cars
AMG E 63 / E 63 S · AMG CLS 63 / CLS 63 S · AMG S 63 · AMG CL 63 · AMG SL 63 · AMG G 63 / G 63 6x6 · AMG ML 63 / GLE 63 / 63 S · AMG GL 63 / GLS 63
M157 / M278 overview · All supported cars · Interactive catalog