Funny you say that. NOx sensors in Canada are like $1000, in the states they are like couple hundred bucks.I kid you not the day I started diagnosing the issue my 2014 jetta pre turbo failed outright all of a sudden. Flashing glow plug and codes. That's when I had the idea to check the touareg. Very much a coincidence but weird.
Also one thing annoyed me is the price.
Egt 1 sensor in the states is $73.85. In Canada.... $285!!??