The most money all at once I ever spent on one mod was my aftermarket hood. $600 unpainted and another $400 to have a body shop prep, paint and install it. I thought of all the other little mods I could have bought instead but did it anyway at my wife's encouragement. She said, It's your dream car, do it right or don't do it. Save and work extra if you have to but get something that transforms the car and makes heads turn.
I settled on the Cervinis type 4 ram air style. Now I'm very glad I did. There are only a scattering of other Mustangs I see from time to time driving and none have the same look. The hood was great quality and the shop matched the paint perfectly.
If you're wanting to really make your V6 or GT cause people to stare when you drive by, the aftermarket hood with functional vents or ducts really does the trick and will make you want to keep adding quality mods even when you have to wait for the money to save up. The end result even years from now will still cause envy.
My 14 is just a base GT. there's no fake snakes on it, no fake SVT
emblems, just Roush axle backs and a few cosmetic mods. I can't stop for gas without it turning into a car show.
If you can swing it and you're probably going to keep this car for a while, consider a whole new hood instead of just adding vents or a used GT regular hood.