Originally Posted by Glenn Wallace
There is a chance the car may not quite make 300 BHP on 91 AKI in summer, but on 93 it definitely makes 300 at the crank (the original brochures/website specified 93 alongside the HP spec, but I think it has drifted into obscurity).
Subaru had tested 3 maps in the US, one that made over 300BHP, one that made less than 300 and was obviously more conservative, and then the "300 BHP" map that was finally chosen.
Bottom line, it makes 300BHP easily.
That's what I figured. I found it very unlikely just from the seat of the pants feel of the car that it was making at least 300hp.