Arrma Fury - BLX vs. MEGA.....What are the differences??

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In this video, I completely dissect the two sister vehicles from Arrma, the Top of the line Fury BLX and the entry level Fury MEGA. The company advertises several differences including brushless electronics and a few aluminum upgrades in the BLX.......But is there anything else?
Check out my unboxing videos of these two:
Fury MEGA:
Fury BLX:
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