I looked into this a little while back, you can buy the manifolds and turbos from Ford. Ecoboost F150's are making over 400 rwhp so I would love to see what a 3.7 could do with the same turbos. I think that most guys would feel competent enough to finish a turbo setup if they already had the manifolds and turbos. Then again you can always flip the stock manifolds and try to go from there.
Disregard this post, didn't know about the wastegates, or how to delete a post.
2012 3.7 V6 Performance Pack - MRT Interceptors - Steeda CAI -