I have to give my 2003 Impreza in as its smoking very bad only on tick over.
Now it has a Fully Decatted Zorst.
Do Main dealers warrenty the Standard exhaust for 3 years on new cars?

i dont no if i should put it back to standard, i cant see the problem being the exhaust tho

 

i'd put it back standard or at least put the cats on before taking it to a dealer.

They might try and say that the warrenty is void because it's modded or that the exhaust caused the problem, what ever it is.

 

Im gonna put the centre Cat back on and leave the turbo down one off!