Using the Auterra software
The highest readings i got: Power: 142 hp @ 4300 rpm Torque: 145 ft-lb @ 5100 rpm
From the Subaru specs: Power: 165 @ 5600 Torque: 166 @ 3600
When using the A/C, the chassis power and torque go down to 138 hp and
140 ft-lb.The tests were performed in second gear, from 2000 to max. rpm, on flat paved road, tire air pressure to specs, fluids to specified level except for fuel which was about 4 gallons in the tank, no loads on the car, air temperature 80F, wheel alignment verified to nominal specs.
I do not want to imagine where the missing power and torque are. ;)