sweet thanks and other ideas for engine mods that would go well with my truck? also does anyone kno of and kits to convert my truck to 4x4?

any idea how much of a strain it will put on my engine? it has less than 54k on it so its pretty young. sorry if this may sound stupid to ask but im a complete noob at this. also any ideas of the rwhp and torque ill gain through the tune?

I have a 2008 Ram 1500 4.7L two wheel drive and i am looking to get a tuner for it but i am totally lost on what type of tuner would be best for my truck. If anyone has any ideas or info i would greatly appreciate the help