D-Sync Works

CLS 450 ECU Tune — Stage 1 / Stage 2

CLS 450 ECU 调校程序 · 一阶 / 二阶 · 手机刷写 · $900 USDAvailable now

The CLS 450 (C257), 2018–2021, runs the Mercedes M256 (Gen 1) 3.0T Inline-6 engine. Our Stage 1 OTS tune takes it from 367 hp / 500 Nm to 500 hp / 650 Nm, and Stage 2 pushes it to 520 hp / 700 Nm.

All gains validated on real cars. Factory safety parameters preserved. · Requires a one-time Autotuner bench unlock before the first flash. We do not perform the unlock ourselves — Autotuner benches are common at performance shops worldwide, and any shop with one can do it.

How flashing works

After the one-time Autotuner bench unlock (we do not perform the unlock ourselves — Autotuner benches are common at performance shops worldwide, and any shop with one can do it), 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. Your factory calibration is saved automatically — revert to stock with one tap, anytime.

Pricing & ordering

$900 USD — includes the license and the D-Sync D1 Wi-Fi dongle, covering one VIN. Free shipping & customs clearance to all supported regions.

Order by Email

Email your VIN to duke@yd-autogroup.com so we can confirm tune availability for your exact ECU version before you pay.

Other M256 (Gen 1) cars

AMG E 53 · AMG CLS 53 · AMG GT 53 4-Door · AMG GLE 53 · AMG GT 43 / 50 4-Door · E 450 · GLE 450 · GLS 450 · S 500

M256 (Gen 1) overview · All supported cars · Interactive catalog