Sure. But other aspects of the BRZ ownership experience might suffer. If Subaru were to add a turbocharger or supercharger to the BRZ's engine, power would certainly go up, but prices could easily ...

and without the help of a turbocharger or supercharger, it produces only 151lb ft. This peak arrives way up at 6400rpm too, so there’s an incentive (if one were needed) to rev the BRZ out.