Upgrades
Tinsmith3,
Welcome to the group.
Most of the aftermarket mods that you will find will void warranty in some form. Depending on how much of a **** your dealer is, depends on how far you can go.
I guess if you are really concerned about the warranty, you better stay with an aftermarket air system (AFE) (which they can complain about, but won't lead to any failures). And then let them do the high dollar injectors.
Like I said, if you take the honest route and have a box, and it causes problems, it's your problem, not thiers.