Ramsey, who supported United growing up, has admitted he had no hesitation over his decision to sign for the Gunners after meeting manager Arsene Wenger.
“I had to make a decision at the time [of signing for the club],” he told the club’s official website.
“I flew over to see the boss and I knew straight away that this was where I wanted to be, I wanted to be in his plans and I was just buzzing.
“I think I am a bit louder now than I was then!” he added. “You understand how things go on and off the pitch a bit better.
“It only seems like the other day that I was signing for Arsenal, but there has been eight years in between – so it goes before you notice really.”