Good morning gents,

I have a 2006 LBZ that I put a 4" intake on. The truck was already tuned (not by me) and after the intake install it seems like I have more black smoke than I did before when laying on the throttle. I am curious if I need to rescale the MAF and if so, how do I do that?

One other thing, when I installed the intake, I put on another set of tunes at the same time. This may also be my problem, but I want to be sure that I am set up correctly on the MAF side of things. Even if I do go back to the other set of tunes, I am pretty sure I will need to rescale the MAF anyway since that was setup for a stock airbox.

Thanks!