Heads up if you are replacing the bottom part of the chassis for the pro version you also need to buy the new pro battery, audio adapter and the new pro speakers as the old ones are not compatible
The new bottom cover requires the new battery, new speakers and new audio board, as well as the new input cover (graphite or silver). So you are limited to either getting a new input cover or getting the entire bottom kit.
Heads up if you are replacing the bottom part of the chassis for the pro version you also need to buy the new pro battery, audio adapter and the new pro speakers as the old ones are not compatible