Yes it is original. Im not having any check engine lights or anything yet, but I guess Ill have to do some soul searching where to go sooner than later. I may delete, but I also back into an attached garage, so I and more so my family like the lack of diesel fragrance. My emissions equipment has been pretty solid, only one heater replacement that VW reimbursed, so I dont feel the same need as some to get rid of it. Most likely if I can get this one cleaned, or replace it for not a lot of $$$, id probably go that way.