you can always have a custom one made up, but it will cost. I read that some dud had make a contract with a company to turbo his focus with a min of 200BHP, and when they got it wrong, they had to send it to another company to do. All for 2000 quid.
So, if you really want it, just find a company that will go it, or a super charger might be easier....try GMC up north.