Like someone stated earlier, I got mine for the smiles, and I like to go fast. If fuel mileage was a concern then I would have bought something else. Running 3.55 and could care less about the MPG's, the light comes on I stop and feed the beast. Hop back on and drive it like I stole it!!
The other thing to think about is your strips. Are you planning on keeping them or removing them all together? Personally I've just not seen the dual stripping on a Cobra R hood, don't know how that would look.
I've had several Cobra R hoods, they fit perfectly and are light weight. Plus it give that aggressive look that grabs peoples attention. I'm planning on putting one on my 2016 vert. Everyone else seems to be throwing the GT500 or GTD hoods on. At the end of the day, you gotta do what makes you...