It's called utilizing a WRX donor car.
Typically we don't define the Subaru Forester as anything particularly cool. It's an impressive crossover and all, but really, it's nothing special. When it first launched in the US back in 1998 it was, well, pretty damn ugly and nothing more than a tall station wagon to be perfectly honest. The standard and only engine was a 2.5-liter flat-four. It wasn't exactly impressive power wise. But someone had the brilliant idea to do an engine swap with a 2002 WRX.
Yes, that means a turbocharged Forester. This is the Forester that should have been initially built but wasn't. Regular Car Reviews, flexing all its English language muscle, checks out an old Forester with WRX power.