Also, the rear bumper duct. For some reason, these were freely available to buy in Japan before the aero kit was announced, but not anymore. Now you have to provide a chassis number to purchase these parts.
Part numbers:
52164-52150
52165-52150
Fun fact: my Gen1, built in 2013-04, already has the cutting outlines for the rear bumper ducts.
Makes me wonder what other easter eggs are right in front of us that we're missing
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