The Olimac Drago GT6 Corn Header seems to be a solid choice for corn harvesting in Farming Simulator 25. With a working width of 4.5 meters, it should be able to cover a decent area in a relatively short amount of time. The max working speed of 10 kph is also respectable, allowing you to efficiently move through your fields.
At a price of $28,000, it falls in the mid-range when compared to other headers in the game. It could be a good investment depending on your specific needs and budget in the game.
Overall, the Olimac Drago GT6 Corn Header looks like a reliable piece of equipment that can help you with corn harvesting in FS25.