Barao, 26, says he hasn't even thought about UFC President Dana White wrapping the bantamweight strap around his waist at the end of the fight.
He's more concerned about using his UFC 169 fight to elevate the profile of the promotion's 135-pound division.
"I haven't thought much about that moment because I've been so focused on the fight," Barao said of having the strap placed around his waist. "But when I do get my hand raised and that belt is put around my waist as the undisputed champion, it will be one of the greatest moments of my life. There is no pressure because I've worked very hard for this, and it is going to be an amazing feeling.
"I want to be the start this division needs to get more recognition. I train very hard to put on a great show for the fans, and I love getting out there and fighting for them. I want people to be excited to watch me fight. The more people enjoy watching me fight, the more attention it will bring this division."
Barao says he's ready for a five-round war with Faber, and he doesn't expect it to be as easy as the last time they fought.
"Faber is a much better fighter than he was before," Barao said. "He's improved a lot in his stand-up game. He's made some changes in his rhythm, but I'm on to it and I will be one step ahead of him in this fight just like I was the last time.
"In the first fight I wanted to get a good grasp on the distance between us, and then once I found it, I could impose my will. This time around it is going to be the same thing. Faber is going to try to do some things to throw me off, but ultimately a fighter always goes back to what is the most comfortable for them. Once things settle down, it will be just like the first fight, and I will be able to do the things I plan to do."
Barao meets Faber in the main event of UFC 169. The event goes down on Feb. 1 at the Prudential Center in Newark, New Jersey.
UFC 169 also features a title fight between Jose Aldo and Ricardo Lamas, along with a heavyweight bout between Frank Mir and Alistair Overeem.