Thanks guys for the responses. I understand where the guys are coming with the sims and all (bear with me, this is my first diesel, let alone I don't know a whole lot about engines).
In order for it to pass emissions, the CEL has to be off.
In your opinions, do you think a Black Maxx is worth it in the long run?
I want to turbo-back 7" stacks on my 2010 CC LB SLT 6-Speed.