Take it out to the dirt and gas it, that will tell you right away if you need them. I bought mine in the middle of hunting season and was disappointed on the washboard roads. Couldn't get traction to save my life and I wasn't screwing around, that was just trying to move.
I am the same way that if it is gonna get anything I want to be the one to do it. I've done Banks exhaust so far and my leveling kit with new shocks. Don't know how far I want ot go with this one, it already has more power than I need.
How many miles on yours?