It was their second straight podium spot following the second finish in the qualifying race on Saturday.
Driving their Ferrari 488 GT3, the duo finished second behind Alexander Mattschul and Daniel Keilwitz of Rinaldi Racing.
Piti was delighted to post back-to-back podium finishes in his first time competing in Europe.
“I have to thank all staff members of our team for making this possible. It’s my childhood dream to be able to compete in Europe. A lot of people questioned me when I came back to compete on the circuit five years ago.
Some say you can compete in the race if you have money, but it takes more than that. I competed two years in Thailand, two in Asia and in my fifth year, I’m competing in Europe. My dream came true,” Piti said.