Headers on Turbo engines is a tricky mod to get right. You can't just bolt on a set of big headers that lets the engine breathe better like we've done in the 'Old School'. That would create turbo lag and reduce performance. They would have to allow the engine to breathe better and maintain exhaust velocity, that's a science, some even say witchcraft. And because they'll be HEADERS now rather than manifolds they will need to be made of more expensive alloys that can stand the intense heat of the turbo engine exhaust. There are grades of stainless steel that could be used but eventually the heat would cause them to crack. Inconel would be up to the task but it is expensive. Its best not to mess with them until your other mods cause the factory manifolds to be a restriction. And even then you may want to consider having the factory manifolds ported to accommodate your needs. Eventually the modding community will create a big enough need for a company to produce headers or hi-perf manifolds especially if this engine ever finds its way into being an option in Mustangs.