How could you possibly think 550miles to a tank is bad?
WRX's are not that slow though btw MrLOL. I took mine down the strip with only exhaust mods, in a 13.2 @ 102.
i had a little "play" from about 40 mph on the dual carriageway last week with one.
mullered him in that straight away i was pulling away from him and was a car length or so in front within a few seconds.
The 1/4 mile and 0-60 times look better than you would expect due to the 4x4.
Once rolling though, they're not all that.