I just added an aftermarket hood. I would not buy a prepainted hood. Check the part finish. Body work IS required between pulling the part from the mold and getting to finish paint.
Here is the hood in primer for fitting. Some filler was required to fit the lines in the right front corner.
Here is the finished hood. I added a valance and wheels while I was at it.
2011 GT 5.0 Premium 401a, MT82, Glass roof, Brembo, Comfort, 3.55, accessory trim 5 (scoups, flat panel, Pedistal spoiler) mods:
CS front valance with fogs & Roush harness, Roush side splitters, LMP sport hood, RTR rear valance, MRT hood struts, invisible bra, Corsa Extreme & X pipe, anniversary staggered wheels, Steeda shifter, Oracle LED halos, Ultra Silverstar.