It was two years ago so I can't remember exactly, but I really don't remember doing much stripping down at all, just a bit of plastic. The hardest part was getting the plug to disconnect as there isn't much room to get your fingers in. I used a small o2 sensor socket (the one where you put another socket off centre) which made access easier and soaked it first with penetrating fluid, ideally overnight. I guess being a hybrid you've got other obstacles to contend with.