Simple job to fit the lamda sensor in the exhaust collector. More difficult to complete the wiring. The plug needed to be cut off as it is too big to go through a reasonable size hole in the body work. Also the wire is way too long. Only problem with re-soldering the lead is that the wires seem to be coated in something that prevents solder from taking. I used a needle file to rub the coating off and expose the copper strands within. Then it was a simple job to solder and make good with heat shrink sleeving.