The Spitronics E66_P3 Output Harness – Power Only is a purpose-built wire-and-play harness designed specifically for powering the Spitronics Callisto ECU.

This harness provides the essential power output connections required for installations where only ECU power wiring is needed. It simplifies wiring, reduces installation time, and ensures a stable electrical supply to the ECU in custom builds, engine swaps, and motorsport applications.

Manufactured using high-quality automotive-grade wiring and connectors, the harness is designed to handle demanding environments while maintaining reliable performance and long-term durability.

Key Features

• Designed for Spitronics Callisto ECU

• Power-only output harness configuration

• Automotive-grade wiring and connectors

• Simplifies installation and reduces wiring errors

• Clean and professional wiring layout

• Reliable power delivery for ECU operation

Ideal Applications

• Engine swaps and conversions

• Custom Callisto ECU installations

• Motorsport and performance builds

• Restoration projects

• Automotive electronics installations