The former Spain international states that the fans' passion was a major driving force behind the move, and cannot wait to get started at his new club
After previous prolific goalscoring spells, the striker has failed to regularly find the target and first team football with Getafe, which has forced him to go to Asia to try and reignite his form.
Johor, who finished ninth in their division last season, are being dubbed the 'Man City of Malaysia' due to the money they are prepared to invest to win a league title.
"I'm really happy to come here as this will be a new and great experience for me," announced Guiza, speaking to reporters.
"To be honest, I don't know much about Malaysian football, but I watched videos of the local matches on the internet before coming down here and what I observed was Malaysians appear very passionate about their football.
"I want to help Johor become not only the top team in Malaysia but in Asia aswell," he said.
Johor FA's secretary Suhairi Hashim was keen to disclose information on the club's fresh ambitions, stating that big things are expected in coming seasons.
"We have a massive budget for the team this year to develop football in Johor," he enthused, speaking to local media.
"For sure, it is one of the biggest soccer deals in the country. We want to win every tournament including the Malaysia Cup and the Super League.
"It is possible with the team we are going to have," he said.