Originally Posted by
Slow Learner
I would be interested in this as well. Stock '14 CCLB, G56. Installed MM3, no tune yet (waiting on hard parts). Watching PID's to get a baseline of the truck until I can add the tune.
Unloaded, I never saw over 13 or so on the MM3. Most times around single digits. Exhaust brake is noticable, truck tends to start to wake up around 1,600 RPM.
Compared to my 5.9L/NV-4500 previous truck, feels sluggish, but will rev higher.
I can't say if its "normal", I have only had the truck for six weeks.
I'll follow the thread to see what you find, if I discover something on my end I'll post it back here.
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