Cat back stainless steel exhaust

[TomL83]

Iv been looking at a cat back stainless steel exhaust for my 2011 A3 Sportback, but would you get errors come up on the car with one? Or is it just a full stainless steel exhaust system the errors come up on?

 

[syko]

will only get EML with a decat or low cell sports cat i think but a map will get rid of it for good