At just 2.5" of lift, you really don't need to do anything at all. Sure, your axle will be off center from the lift but, that'll happen any time you change the height of your Jeep (this happens simply when you add more passengers) due to the fact that you have track bars. If you want to center your axle at a normal ride height, a basic adjustable front track bar is all you want and need. SOME aftermarket diff covers can cause some clearance problems but not all. The more lift you have, the less of a problem this is.
Having said all that, I would only install an EVO draglink flip/track bar relocation kit IF you have 3" of lift or more. This kit will correct the geometry of BOTH the drag link and track bar and it is critical that you do both at the same time. Installing this kit will allow you to retain your very strong factory track bar and for the most part, recenter your axle as well. Again, the position of your axle is relative to the ride height of your Jeep and it being off a bit one side to the other is no big deal. Of course, you can also run an adjustable track bar with it if you so desire but, I wouldn't and don't.