300/300 for '04-'07 STi
227/217 for '02-'05 WRX
230/235 for '06/'07 WRX

WHP/WTQ will vary based on temperature, elevation, dyno type, how the stars are aligned, etc. (expect a ~20-25% drivetrain loss)

 

Subaru Impreza Research All Models and Prices - MSN Autos

2002-2005 WRX 227/217 HP/TQ
2004-2005 STI 300/300

2006 WRX 230/235
2006 STI 300/300

In 2007 the engines stayed the same as the previous year, but where retested using a new system.
2007 WRX 224/226
2007 STI 293/290

2008 WRX 224/226
2008 STI 305/290

2009 WRX 265/244
2009 STI 305/290

 

what in the world are you talking about with the horsepower decrease for the '07???

 

what in the world are you talking about with the horsepower decrease for the '07???

"SAE rating" - I forgot about that (the STi went down to 293hp)

 

and the wrx went to 224??

 

It's just the different system they used for the 07 MY. Suppose to have been more accurate with the numbers but from my understanding the tune on the 07's weren't that great and needed to be reflashed by the dealer.

 

at the wheels..the 06-07 wrx's are around 200hp and 250 ft.lb. they were under rated from the factory.

edit:i'm assuming the 08's as well

 

09 WRX also underrated by the factory, the 244 ft lbs the factory claims at the crank- most are seeing that (and even more) at the wheels, hp is also underrated but not near as much as the torque #'s

 

I think underrating the power is a common thing with Subaru, when I dyno'd my 2004 STi that was bone stock, it put down 289 whp/280 wtq. Now with it being rated at 300/300 to the crank, that is either a ridiculously low amount of transmission loss or a very underrated motor lol.

 

A bone stock '04 STI, 289/280? Have you confirmed that on another dyno?

 

Nope, I added a full TBE and a few other mods shortly after that so I never got to run it again stock. I also don't have the car anymore unfortunately

 

I don't remember what kind of dyno it was. Either dynojet or a mustang dyno. I just remember that it was an in-ground roller dyno.