You can start by figuring out what engine you have. According the the Kia Rio wiki page...
"For the North American market, the 1.6-liter Gamma GDi engine was replaced by the 1.6-litre Gamma II MPi starting from the 2020 model year. The EPA fuel economy rating was significantly improved as a result, while rated maximum horsepower reduced from 130 hp (132 PS; 97 kW) to a peak 120 hp (122 PS; 89 kW) "
Hyundai/Kia engine wiki
This link lists all the cars that use the 1.6L Gamma engine. The trick is to figure out what version of the 1.6L engine we got in North America. Then you can start by looking for upgrade parts for all the Hyundai's and Kia's that use that engine.
"For the North American market, the 1.6-liter Gamma GDi engine was replaced by the 1.6-litre Gamma II MPi starting from the 2020 model year. The EPA fuel economy rating was significantly improved as a result, while rated maximum horsepower reduced from 130 hp (132 PS; 97 kW) to a peak 120 hp (122 PS; 89 kW) "
Hyundai/Kia engine wiki
This link lists all the cars that use the 1.6L Gamma engine. The trick is to figure out what version of the 1.6L engine we got in North America. Then you can start by looking for upgrade parts for all the Hyundai's and Kia's that use that engine.
