If you plan to keep the DoD/AFM system then you'll understand why it'll sound bad when it kicks down into 4 cylinder mode.

Alot of people get a tune and turn DoD off, to keep it a V8 all the time and less chance at a DoD lifter failure.


A tune, trans cooler (must do), 91+ octane fuel and general maintence are really all one needs to do. Anything else is would be for performance gains.