M256 ECU Tune
$1,899.00
Mercedes Benz AMG ECU tuning and calibration specialists. M256 Performance ECU Tune for CLS450 GT43 GLE450 S500 E53 CLS53 GT53 AMG Vehicles. W213 C257 X290 W222 W222
Specifications
- Engine family: M256
- Performance: +43 HP, +90 TQ, Weistec 540 hp, 566 lb-ft, stock 497 hp, stock 476 lb-ft
- Part number: 05-256-00117-7
Fitment
- CLE53 AMG Convertible (A236) 2025-2026
- CLE53 AMG Coupe (C236) 2024-2026
- GLE53 AMG Coupe (C167) 2019-2026
- GLE53 AMG 4MATIC (V167) 2019-2026
- GLS450 Base (X167) 2020-2023
- CLS53 AMG 4MATIC (C257) 2018-2021 (+12 more applications)
Sold by Dyne Performance USA, an authorized dealer. Contact sales@dyneperformance.us for fitment confirmation, lead time, or installation.