The O2 sensor kit with gauge is fully wired and will connect directly into your Weberpower ECU kit. http://www.weberpower.com/electrical-ecu-ignition-kit.html This will allow the ECU to operate in the closed-loop mode, and write its own map files and / or monitor the AFR in both the closed loop & open loop modes. The closed loop capability allows you to tune the AFR and map file settings and possibly increase the performance. It can also be used as a stand-alone unit to monitor AFR by re-wiring the connector and signal inputs. We also offer the replacement O2 Sensor. Available from Weperpower.com at $210.00 and the replacement O2 sensor costs $84.00
