8′ Classic MegaSquirt Wiring Bundle
The MegaSquirt 8′ Wiring Bundle is designed for reliability, clean routing, and ease of installation. Built from high-temp TXL automotive-grade wire, this harness includes thoughtful improvements to reduce noise, streamline wiring, and improve functionality—making it the most refined MegaSquirt wiring solution available.
Whether you're wiring a fresh standalone EFI system or upgrading an existing install, this bundle helps you get it right the first time with clearly labeled wires, noise-resistant construction package.
Compatibility:
Key Features:
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8′ of color-coded TXL automotive-grade wire rated for high heat
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Printed wire labels every 5″ with function and pin number—no paper tags
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Twisted and shielded ignition input cable for superior noise suppression
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Dedicated sensor ground wire for clean signal returns
This is the bundle we recommend for most MS2, and MS3 applications that wire directly to the ECU’s DB37.
Note: This harness is not compatible with the MegaSquirt Relay Cable. Use one or the other—not both—depending on your setup.