No.
A 2" budget boost will probably move your axle not more than about 1/4 of an inch. You could get an adjustable if you're a perfectionist, but not necessary. Wait until your track bar needs replacing, then get an adjustable. Just be careful when buying, because some of the adjustables won't adjust short enough for stock height, and a budget boost is so close to stock that they may not be short enough for that.