What can the dealer see about tuners
 

If I put a smarty sr. on my 2007.5 dodge and I have to take it in for warranty work will they be able to detect if I put the tuner on it? Someone told me that they can see if the truck has had a tuner on it.

Absolutely - if the dealer wants to looks and is looking to deny warranty on something, they will be able to tell.

The 6.7 ecm records tons of data,even the number of flashes can be found as well as when.