Porsche will return to the Superstars International Series this year, with Petri Corse entering two Panameras.
The Porsche brand was last seen in the championship when N.Technology fielded Fabrizio Giovanardi for three events in late-2010 and took four wins from six starts.
Simone Petri's team has previously run GT Porsches in Italian championships.
"We continued to invest in this very important car brand and we decided to join a high-level championship involving some tough competition in terms of car manufacturers," Petri said.
"That will provide additional motivation in order to achieve good results."
The squad promised that it had "fast and experienced" drivers lined-up for its Superstars programme.