You should believe it! Why do you think all the utv manufactures, including Yamaha supported bill AB1595 that became law? AB1595 mandated helmets in manufactured ohv that are under 1000 cc's. The 1000 cc limit was chosen by the manufactures, not some politician.
Why would any utv manufacture build something over the specified limit of a law they supported & paid for? Trust me Yamaha is the last company that is going to be the test dummy for something new. Build something outside the current law that was written to protect them and you are just going to be inviting new lawsuits.