That's a Dorman (or rebranded Dorman-type) intake. Same as Amazon and RockAuto sell.
Has to be anyway, since the Ford one now carries an 'official' US price ticket of $390
Dead giveaways are the photos which show the multiple self-tappers, 23 individual port and water gallery gaskets, spacers and bracket fitting kit, none of which are needed with the original Ford item. Often relabeled with fancy names other than "Dorman", such as SKP, Autotecnica, ATP, A-Premium, GO-PARTS etc. etc. and widely available in the US, even Walmart!
Never used a Dorman myself, but reviews and Mustang sites say to avoid if possible; I was lucky and managed to replace mine with a genuine MGR NOS unit, the same as the Ford Performance one.
... but, if you are feeling brave, I think this is about the cheapest Dorman type, via Amazon.com (UK shipping estimate shown), at US$ 140: https://www.amazon.com/Premium-Manif...=A31B1NF333K7B