I was looking for a new look from my trans am and i wanted to get a ram air hood. Now i just ordered a morosso cold air intake for my ride. Should i just return it and buy the air box or should i just keep the Moroso intake? How much of a difference will the ram air hood give me?

Just keep the Moroso that you already bought. It's alot cheaper and just as efficient. Especially since all a ram air intake does, is act as a cold air intake. The only problem you may face is flamers making fun of you for "imitating" a ram air car rather than being "true" ram air. You can just feel free to ignore them though.