If you are running an Aftermarket ECU, we can customize your PRO Series Harness to fit your exact build requirements, specifically for sensor connector & location. Once you have placed your order, check the Order Confirmation Email for a link to complete & submit the Aftermarket ECU / Build Details Form 

Wiring Specialties Aftermarket ECU PRO Harnesses are pre-wired for Oil Pressure, Fuel Pressure, Intake Air Temp (IAT) & Manifold Absolute Pressure (MAP) sensor wiring directly to the ECU of your choice.  Flex Fuel sensor support is available if desired for no extra charge. ECU control of a Boost Control Solenoid is also included on most harnesses.

Please read the Aftermarket ECU Sensor Guide & watch this Wideband O2 Sensor Guide Video to help you select the correct sensors to perfectly match your ECU & the PRO Harness connectors. We also have several pre-configured Sensor Packages available to get you started. Click the links below.