Ignitions and Electrical› Computers, Chips, Modules and Programmers

Weistec Engineering

M276 DE 35 ECU Tune

$764.15

SKU: 05-276-00215-8

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In Stock
Ships by Aug 4
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30 Days Return
INSTALL DIFFICULTY
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Description

The Weistec Engineering M276 DE 35 ECU Tune is an engine control unit upgrade specifically engineered for naturally aspirated 3.5L V6 M276 DE 35 engines. This tune is designed to unlock substantial performance improvements across the entire powerband, delivering estimated gains of up to +29 horsepower and +23 torque. Advertised gains are estimates of peak horsepower and torque increases. This ECU upgrade is compatible with Mercedes-Benz C300 4Matic models equipped with the V6 3.5L engine. It is designed as a direct replacement or reprogram of the existing ECU, optimizing engine parameters for increased power output. The tune focuses on extracting more performance from the stock naturally aspirated configuration.

MIA's Description

The Weistec Engineering M276 DE 35 ECU Tune is a computer tune designed for naturally aspirated engines. It provides significant gains across the entire powerband, offering up to +29 HP and +23 TQ. This tune is intended to enhance the performance of the M276 DE 35 engine.

Fitment

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Specifications

BrandWeistec Engineering
Part Number05-276-00215-8
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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