Here’s a brochure referencing the PVCX for use on Indian Motorcycles, but it is the same unit for the Polaris RZR’s too.
I’ve been beta testing the unit for my Indian. Thought I would mention it here to see if anyone has used it yet to flash their ECU?
Looks like DynoJet has tunes available for several model here: Power Vision Tunes
RZR XP1000 and Turbo
(Note: I am not affiliated with DynoJet, just an user of this product)