Anyone know the difference between these 2 spoilers?

[bigbadspoon]

I'm looking for the '18 PP1 spoiler and there seems to be two part numbers online with wildly different costs.

JR3Z-6344210-AB: cheap, but no pictures, so not sure if this is correct
JR3Z-6344210-CA: lots of pictures, but very expensive

Anyone know the difference?

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[bigbadspoon]

Sorry, I accidentally posted twice. Mods, please delete duplicate...I can't seem to find a way to do it on my own.