If you lift it a lot changes.
You'll need longer brake lines, longer driveshafts or cv driveshafts, your pinion angle/driveshaft angle correlation will need to be adjusted to avoid vibration, the draglink angle changes and must be compensated for including adjusting your steering wheel back to center, et.
So your talking about a big change and a fair amount of money. All possible but if your inexperienced you may be suprised at what it takes. Just be aware.
All the information you'll ever need can be obtained by using the search feature on the board. If you'll search for suspension lift kits and similar topics it will bring up a long list of threads.
The two most recommended off-road kits are BDS and Tuff Country. If you want stiffer springs and just a cool look you can go Skyjacker.