
Subaru Plug and Play Adapter Harnesses
Currently supporting Haltech, Link ECU, FuelTech, and MaxxECU products.
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Our Plug and Play (PnP) Adapter Harnesses allow for quick and easy installation of standalone ECUs into Subaru vehicles that retain the existing OEM wiring harness.
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Unlike the competition where "you get what you get", our adapters are built to our core spec which satisfies most applications, but can be customized at checkout to suit your needs.​
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Extra sensors can be added with plug and play sub harnesses, repurposing unused OEM connection points for motorsports functions:
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Rear O2 to FlexFuel Sensor
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TGV to Pressure Sensor
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MAF to IAT (SD conversion)
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and more... see "Example Customizations" below.
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Installs without cutting, and is easily uninstalled if needed.
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Constructed using M22759/32 ETFE "Tefzel" color-coded wires and ident bands. Full color PDF wiring diagrams and pinouts are provided for each adapter.
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We can program your ECU with a fully functional base map according to your chosen spec, reducing headaches and troubleshooting.​
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​Remote tuning available.​​
Example Customizations
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Extra length on adapter (relocate ECU to a better location)
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Milspec construction, concentric twist layup, booted connectors
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Extra Sensors (coolant pressure, exhaust manifold pressure, crankcase pressure, accumulator pressure, oil temp, exhaust gas temp, extra air temp, turbo speed, shock travel, etc.)
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Provisions for extra fuel pumps including brushless ECU-driven controllers
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PDM integrations
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Integrate AVCS sensors and solenoids into engine harnesses that had no provisions originally (ex: 2002-2005 WRX chassis with AVCS engine; single AVCS chassis with dual AVCS engine, etc.)
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DCCD controller integrations
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CAN device integrations (digital dashes, keypads, etc.)
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Sequential transmission integrations
... and much more. Contact Us if you have any questions!
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Price: Starts at $550.00, customizations extra.
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Contact Us to request a quote and place your order.
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BW Tuning Usage Policy
In many states, it is unlawful to tamper with your vehicle's emissions equipment. BW Tuning products are designed and sold for sanctioned off-road/competition non-emissions controlled vehicles only and may never be used on a public road or highway. Using BW Tuning products for street/road use on public roads or highways is prohibited by law unless a specific regulatory exemption exists (more information can be found on the SEMA Action Network website www.semasan.com/emissions for state by state details in the USA). It is the responsibility of the installer and/or user of this product to ensure compliance with all applicable local and federal laws and regulations. Please check with your local vehicle authority before purchasing, using or installing any BW Tuning product.



