I have considered trying one of those out. But I didn’t see any advantage of that unless louder intake noise is on your wish list.
There are very few power improvements that will work on the basic Fiesta because Ford has the engine controls locked up tightly. So reflashes for bigger injectors and throttle body and more radical cams is off the table of possible upgrades.
If upgrades were available for the engine the next issues would be the economy oriented gearing in the transmission. None of those are inexpensive areas to address.