So... last week (before it started raining again) I was checking out where/how etc to prepare for the Zoodad mod when I noticed all this soot on the top of everything under the hood.
Could this be the boot?
I've noticed a drop in how the truck reacts and am hoping once I get the quadzilla here and installed I'll see what my boost is.
Specs: 01 7.3, 103k miles. Haven't noticed an increase in noise, like exhaust leak either.