How do I replace the O2 Sensor?

[Zippy M3]

NE1 have detailed directions for a 95 M3?

I've had some people tell me that it's complicated and you need to splice wires with special tools and stuff and others who have told me that it's a 5 min job??? I'm confused and any advice would be much appreciated!!!

[AlphaKennyOne ///M3]

It looks fairly simply (haven't replaced it yet). I have an air/fuel ratio gauge that I had to hook up to my O2 sensor....it looks pretty simple to remove it and replace it, but then again...I haven't done it yet....but look underneath your car and see how it is.

Alan