Yesterday I bought hay from somebody new, and he loaded me with a 2018 Massey 4711. I asked him where he bought it from and if he liked his dealer. He said Dogwood sales in Palestine TX, and he said that the dealer was great. But he also said that almost from day one, he had issues with the smog system. It got so bad that Massey flew people out to his place to work on it, and they never did get it right. Last year he had a guy from Dallas come out and delete it ,and tuned it up to 125 HP. He said that while running the bailer, it would bog down before, but now it has plenty of power. This is the same engine that is in the 4707!!!
I'm not planning on deleting anything, or increasing the HP. In my experience when doing this with Jeeps and Trucks in my younger years, it was just a lot of money, without any significant improvements. But it is interesting that the engine was capable of that much more power.