Using two PN532 NFC RFID modules for communication with each other

Hello,

I'm thinking of setting up two NFC modules and making them communicate with each other. The modules advertise that their maximum effective distance is between 5-8cm, but I need minimum 10cm. I was wondering if the communication is between two modules and not between a module and a passive NFC device, I could double the range? I've read that NFC communications can be P2P so back and forth communication shouldn't be an issue.

Also if anyone knows of a good NFC module with higher range then do please share :). Right now I'm looking at this:
PN532 NFC RFID module V4(WIRELESS-NFC-PN532_V4)

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Andri