Air Fuel Ratio Meter for Supercharged K20A

I was given a Lumenition AFR meter for Christmas by my lovely lady. Has anyone fixed one of these themselves as it needs to be fitted to the Lambda sensor and I’m not sure what this is or if I have one. Any advice would be much appreciated

Nick,
The AFR meter requires a separate Lambda sensor (wide band type) which will need a bung welded into the exhaust to mount. It should have come with the sensor and the mounting weld bung.