Like all P25s, this one gets a blueprinted version of Subaru's iconic EJ25 boxer-four, equipped with new internals and a Garrett turbocharger to make 444 horsepower and 487 pound-feet of torque.

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 ...

Subaru made more improvements over time until it was discontinued in 1994. EJ20s are generally reliable. The WRX’s EJ205 is a 2.0-liter powerhouse with up to 227 horsepower and a long life ...