ok to answer all of your questions i am running the injen rd1222 cyborg intake. and on the highway in 5th gear at 3k ill average around 30-32 mpg in the mountains, and about 34 on flat roads. and making 160whp i have uel header, high flow cat pipe, cat back exhaust, lightweight crank pulley, intake, and opensource dyno tuned. And road runner has a very good point with the torque factor on our n/a's. a stock 06-07 wrx makes 169whp and 174wtq compaired to only my 157wtrq. And thats with modifications. Put the same mods on a wrx and u have another 40-50 hp. torque wise we have no competition against a forced induction car.