Johansen, 22, first linked up with NYCFC as a trialist during preseason and, after impressing in two substitute appearances, convinced the Blues-backed MLS side to pursue his signature on a permanent basis.
With his stateside switch now confirmed, the Norwegian goalkeeper was quick to praise his now-former club for helping him in his development, while also expressing his excitement at the chance of a fresh start.
So finally everything is ready ! I just want to thank everyone at Manchester City who have helped me both on and off the field! 6,5 years..— Eirik H Johansen (@EiJo92) March 31, 2015
.. is a long time ! And I feel very luck to have had that chance! And thank you to all the fans who's been following. This is not the end !— Eirik H Johansen (@EiJo92) March 31, 2015
I'm so glad to finally be able to say that I am a part of the history being made in @NYCFC ! And look forward to remain in skyblue colours!— Eirik H Johansen (@EiJo92) March 31, 2015
Johansen joined the Premier League champions in August 2008 from local club Teie FC and signed his first professional contract in the summer of 2012 after impressing for both the Under-18s and reserves.
He made the first-team bench on a number of occasions but never earned a senior appearance for the club, instead taking in loan spells at Scunthorpe United in 2013 and Norwegian side Sandefjord in 2014.
With little chance of earning regular minutes at the Etihad Stadium, the move seems a sensible own from his perspective, although he still faces a battle to break into the side in New York, with the expansion club now having four keepers on their roster.
Current starter Josh Saunders has also been in tremendous form during the first four games of their inaugural season, conceding just two goals, but head coach Jason Kreis has nevertheless stressed that the Under-21 international will get a chance to impress over the course of 2015.
“We had a good look at Eirik over the course of the pre-season, and he adapted well to the team and to our style of play,” Kreis told the club’s official website.
“It’s always good to have strong competition for places in the team, and Eirik will add to an already strong group of goalkeepers vying for game time. It’s a long season and guys will get their opportunities for various reasons.”