Some of the most reliable Subaru engines include the EJ/FB20, EJ22, EJ/FB25, FA20, and FA24D. The 2.0-liter EJ20 and 2.5-liter EJ25 engines found in various Subaru vehicles, including Legacy ...
In creating the P25, Prodrive blueprinted Subaru’s EJ25 2.5-liter turbo flat-4 engine and then set about thoroughly upgrading it with new forged pistons, steel con rods, ported cylinder heads ...