Plug n Play Harness, Elite 2500 to Subaru 04-2021 USDM STi & WRX

(1 customer review)


The plug n play harness for the 2004-2021 USDM sti to Haltech Elite 2500 ECU is the perfect solution to anyone building a track monster that needs the motorsports functions of the Haltech Elite ecu. This harness connects the OEM engine harness to the Haltech Elite 2500 ECU allowing for quick and easy install for any manual or sequential transmissions equipped STI or WRX using an EJ25. The Haltech ECU’s have been developed for off road motorsports use such as time attack, rally and circuit racing. You can find the Haltech 2500 ecu on a number of our race cars from drag racing to rally cross and drift cars. **This is a Motorsports only item never to be used on public roads within the USA.**

Choose Production year

Let us know what year subaru you are working with. This will ensure you get the correct version of our PnP Elite 2500 harness for your STI

Package Price Special Offers

Add the Haltech Elite 2500 ecu and/or IO12 expansion module to your order for a complete plug n play package.

  • haltech elite 2500

    Haltech Elite 2500 ECU ($50 savings when added to this package)

  • haltech IO expander

    Optional plug n play IO expansion upgrade for adding Flex fuel, fuel pressure and map select on 2004+ STI's **includes pre wired harness + IO module**

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SKU: VE25113-2500 Categories: , ,