If "all" you're getting it for is speedo recal, then yeah. Just go to the dealership if all you need is a tire size change.Am I the only one who thinks $329 is INSANE to calibrate your speedo?? Does anyone rent these?
Back in my day it was a $40 plastic gear on the 97 XJ.
But if you want all the other features or the ability to change speedo at will (tire swaps [winter/summer, on-road/off-road], this pays for itself.