Aramburu,
If you're out to do some tweaking like you mentioned then the Edge Platinum is for you. Gets' you a FULL set of gauges that you need anyway, a turbo timer which is very useful and will make your turbo last! Plus it has nearly infinite changeable features for the HP, trans etc that you can make based on your use at the time. You'll also want to consider an intake an exhuast to get the max benefit out of the Edge!
No products are warranty safe so the easiest thing to do is remove it prior to any dealer visit, FYI.
Call us if you want we're one of the oldest companies out there and have been warming up diesels since we got our first one a 1985 6.9, what a dog that is compared to today!!! We'll be glad to help you.
Mark @ DPPI