Might be similar horsepower, but the torque numbers are way better. and I get 20mpg flogging (read: pinned all the time) the shit out of it, and 24mpg doing the speed limit, and 26mpg cruising at 100mph.
...And I get 25MPG floggin mine. 31MPG at 70MPH highway all day long. However, my VG is port matched/smoothed, punched .040 over, Cerma Chromed EE headers with 2.5 inch all the way through the CAT and muffler.
I love the meaty sound when accelerating but it does need a small resonator after the CAT to reduce the crackly note when I lift off hard accel.