Originally posted by M5Power
The US did indeed get the super-sexy (yeah, right) 2.2L engine in the Impreza from 1995 to 2001 - it filled the gap between the base 110bhp 1.8L engine (front-drive, low-end models only) and the high-performance 165bhp 2.5L engine (all-wheel drive 2.5RS model only). The 2.2L put out 135bhp originally, but Subaru changed that to 137bhp in 1997 or 1998.
As you point out, the Impreza did indeed take the engine from the Legacy, which used the engine from 1990 to 1994 with both a turbocharged, 160bhp version, and a non-turbocharged, 130bhp version. When the Legacy was redesigned in 1995, it continued to use the non-turbocharged version, and it did so through 1999 (though the 2.5L from the Impreza 2.5RS became optional in 1996). As with the Impreza, the 2.2L was rated at 135bhp originally and was changed to 137bhp in 1997 or 1998.
When the Impreza was redesigned for 2002, and the Legacy for 2000, the engine was dropped, and both vehicles began to use the 165bhp 2.5L 4-cylinder as a base engine - it's now the base engine for Subaru's entire range.