RZR XP 4 1000 Who’s done an ECU flash on their Xp4 1000 and is it worth it November 3, 2015 Stock motor, exhaust and intake. interested in doing a reflash, like the EVO possibly. Who’s done it and was it worth it? Seat of the pants feel…actual dyno numbers… Sent from the dune in front of you Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related