There are a few different variations in what u can buy. The factory installed options is expensive, but good. It replaces the shifter, bushings, and the linkage. I would recommend going to the dealer and playing with one that has it installed to see what you think. Im not sure how much it actually shortens the throws. The aftermarket one's replace only the shifter itself, and any bushings you buy. Installation is easier. Generally it reduces throws by about 30-40% depending on which you buy. It also will drop the height of the shifter 1-2 inches as well. Im actually curious about how many bushings you should buy with the aftermarket shutters to get a good performance feel while keeping it good for daily driving?