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.

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Published fitment
g-series · See fitment notes
964 · See fitment notes
993 · See fitment notes
Recorded availability
Made to order. Confirm with the supplier.
Recorded price
No published price recorded

View supplier page ↗

Reported by a secondary source. Sources last accessed ; fitment is not independently verified.

Engine ManagementMade to orderReported by a secondary source

Manufacturing

ManufacturerRywire Motorsport Electronics
Origin🇺🇸 United States
Manufactured here
Rywire, California.
ProcessElectronics / Software
Additively manufacturedNo
NotesBuilt 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-seriesAll models
964All models
993All models

Sources

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