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If you are using the factory wiring harness and stand alone engine management in your racecar, AEM's ECU/EMS Patch and Extension Harnesses work with most engine management systems and allow you to install turbo timers, data loggers and other ancillary electronics without having to cut and splice into the factory wiring harness.

Patch and Extension harnesses are application specific and for use with AEM's Fuel Ignition Controller and other stand alone Plug & Play engine management systems that connect to the engine via a factory wiring harness. Please use our year/make/model search to check availability for your vehicle.

  • Eliminates cutting/splicing the factory wiring harness on a racecar
  • Allows for easy access to all ECU signals/wires
  • Easy out-of-the-car access for ancillary wiring
  • Troubleshooting can be done outside of the vehicle
  • Easy removal of any device that is no longer desired
  • Constructed with OE ECU and harness connectors for exact fitment
  • Automotive grade wire
  • Wires potted to connectors


FAF Automotive offers 24 month warranty with all products sold. If you have any issues at all please feel free to contact us.

We truly believe we sell some of the most unique items online, and we want to make sure we back that up with a risk-free ironclad 30 day guarantee.

If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase.

If you don't like it, no hard feelings we'll make it right.

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