Nope. The Chakra belonged to the fox, not Naruto. Why act like it was his own ability when it wasn't and Yes Sasuke needed Itachi's eyes to catch up to "Kurama's power" being used by Naruto.
Looks like you're one of those people who still can't accept that the Kyuubi and it's chakra is Different from Naruto and his chakra.
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Well, it was HIS chakra, that much is a manga fact.