Adaptronic Wideband Modules now available
 

These are out of beta testing now, and available for purchase. This is the easiest and most reliable way to connect a wideband o2 sensor to your Modular ecu( as long as you have one small module slot open, this obviously excludes the M1200).

https://turbosource.com/products/ada...band-o2-module

An NGK version is also being looked into for those running leaded race gas.