The first one will NOT fit. I bought one for my 05 GT, and the motor sticks up too far. Your V6 will be the same way. The brace doesn't have much of a bow to it, and in the models it does fit, the intake manifold is lower-profile. Paid $100 for it from Roush, and still have it.
The other could fit, as the bow is more severe, but I'd sure be careful. It's just dicey using later-model parts.