MaxxECU Pro Motorsport Wiring Loom

Motorsport-grade ETFE (MIL-W-22759/16) wiring loom engineered specifically for the MaxxECU Pro Engine Control Unit.

This wiring loom is designed for builders who require a no-compromise, professional-grade electrical foundation for a MaxxECU Pro–controlled engine. Hand-built using MIL-W-22759/16 motorsport-grade ETFE wire, it is intended for elite-level motorsport and extreme performance applications where heat, vibration, electrical noise, and system complexity are part of the operating environment.

As the flagship ECU in the MaxxECU lineup, the MaxxECU Pro is built for advanced control strategies and demanding competition use. This loom removes the compromises commonly found in universal or automotive-grade wiring.

Designed Specifically for MaxxECU Pro

This loom is pinned exclusively for the MaxxECU Pro ECU. Every circuit is allocated correctly for the ECU’s extensive engine management inputs, high-current outputs, power supply, and advanced multi-CAN communications — with no universal pinouts, repurposed circuits, or guesswork.

The result is a clean, predictable wiring system that supports accurate sensor data, stable ECU operation, and reliable integration with motorsport peripherals, power management, and CAN-based vehicle systems.

Built Using Motorsport-Grade ETFE Wire (MIL-W-22759/16)

MIL-W-22759/16 ETFE wire was originally developed for aerospace and military applications and is ideally suited to high-density, high-current motorsport wiring systems.

Key benefits include:

• Excellent resistance to heat, fuels, oils, and automotive chemicals

• Thin, lightweight insulation for compact, low-bulk, high-channel-count looms

• High durability under vibration and continual movement

• Reduced risk of insulation degradation over time

This wire is selected for reliability — not cost.

Terminated or Unterminated Options

This MaxxECU Pro loom is supplied in an unterminated (flying lead) configuration as standard, allowing complete flexibility for engine layout, sensor selection, power distribution, and advanced CAN integration.

A pin placement sheet showing wire numbers is available to download to assist with installation.

Custom terminations, wire lengths, multi-CAN provisions, high-current outputs, and additional system integrations can be discussed prior to ordering if required.

Suitable Applications

This loom is suitable for:

• Professional and elite-level motorsport

• High-horsepower and extreme performance builds

• Circuit racing, time attack, and drag racing

• Advanced engine swaps and custom conversions

• Professional race teams and specialist workshops

This is not a vehicle-specific plug-and-play harness. It is intended for advanced custom installations where control, reliability, and electrical integrity are critical.

What’s Included

• MaxxECU Pro ECU connector(s)

• Pre-wired ETFE (MIL-W-22759/16) wiring loom

• Built to order and quality checked prior to dispatch

Sensors, actuators, PDMs, and the ECU are not included.

Lead Time

Each loom is hand-built to order. Typical lead time is displayed at checkout and may vary during busy periods.

If your build has a fixed deadline, please contact us prior to ordering.

Built to Support Flagship MaxxECU Systems

The MaxxECU Pro is the flagship ECU in the MaxxECU range, designed for the most demanding motorsport and performance applications. This loom is built to support it properly — without shortcuts, compromises, or unnecessary complexity — in professional competition environments.

Select options above or contact us to discuss custom requirements.

Legal Notice

MaxxECU® is a registered trademark of MaxxECU AB. This product is not affiliated with or endorsed by MaxxECU.