My car needs a new lambda sensor due to emission failure on mot , is there just one that fits all 2002 wrx models , because been told there's many different ones? Surely I don't have to take it off to find out? I've seen some denso ones on ebay which say they fit I jut don't want to fork out the money then find out it doesn't fit' it's the precast sensor I need! Please help mot runs out in days

 

I think I've got one from the headers kicking about

 

Is it a def fit for my 52 bug mate I keep getting told there's a few variations?