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Mil-Spec EFI Engine Harness, 911 / 964 / 993 Twin Plug

Motorsport harness for Emtron or MoTeC management, with drive-by-wire, CAN and a Milspec firewall disconnect.

Engine Management Made to order confidence: medium

Manufacturing

Manufacturer Rywire Motorsport Electronics
Origin 🇺🇸 United States
Manufactured here
Rywire, California.
Process Electronics / Software
Additively manufactured No
Notes Built for twin-plug engines with a lower coil-pack sub-harness on a Milspec disconnect. Rywire is BBi’s technical partner and builds the harness inside the BBi air-cooled EFI system, so the two are the same electrical architecture bought two ways.

Fitment

g-series All models
964 All models
993 All models

Sources

  1. Porsche EFI Motec Emtron Milspec Harness Engine 911 964 993 twin plug — Rywire, accessed 2026-08-18