Air and Fuel› Performance Packages

Weistec Engineering

M178 BiTurbo 4.0L Water-Methanol Injection System

$2,299.00

SKU: 01-178-01734-2

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Weistec Engineering water-methanol injection system is a performance upgrade specifically engineered for the Mercedes-Benz M178 BiTurbo 4.0L engine. By managing these critical parameters, the system helps to optimize engine performance and safety under demanding conditions. This comprehensive kit features a cutting-edge water/methanol controller that integrates a built-in MAP sensor. This advanced controller ensures seamless operation and accurate delivery of the water-methanol mixture, crucial for maintaining consistent performance gains and protecting the engine. The system is designed to work in conjunction with the M178 engine to enhance its capabilities.

Fitment

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Specifications

BrandWeistec Engineering
Part Number01-178-01734-2
CategoryAir and Fuel

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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