This plug and play harness allows you to remove the stock Siemens ECU from the 2009 and older Sea-Doo Jet-skis and replace with a FuelTech FT450 standalone ECU.

There is no modification required at all and it is completely reversible if you decide to return to stock.

This harness can be also used with a FT550 ECU if you want to share with another vehicle, just connect the A plug in to it. and you can custom wire the B plug for additional controls and sensors.

It requires a 3 channel ignitor module, which can be the OEM 3 channel we offer as a OEM level equivalent of performance or higher energy ignition module FuelTech SparkPRO-3 Nautica version.

Stock gauges cluster will no longer be functional, the trim control remains functional as stock but there is no Trim indicator on the dash.

There are 2 available inputs from the FT450 ECU that can be wired from the EXTRA connector to additional sensors like fuel pressure, oil pressure, tunnel pressure, temperature and more. Also 2 available outputs that can be used to control boost controller, nitrous, additional fuel pump and more. Also the FuelTech CAN bus is available if you want to wire any FuelTech product like EGT-4 for exhaust gas temperature sensors, wideband o2 sensors using a FuelTech Nano or NanoPRO conditioner and more.