Parts are hard to find!!! but fuel mileage is quite good, MUCH better than a 2.6 gas!! (I've owned both). my GEN II 2.5L 4D56T has about the same horsepower as the 2.6 G54B. and much more torque. I know the 4D55 2.3L has a bit less power but you can do simple mods to bring it up (ie. intercooler, more boost, more fuel). They are tough little engines and they take a beating!!

Finding parts is difficult but once you get hooked up with some of these JDM parts distributors up here in Canada, everything is available, you just need the patience to wait for it to come in the mail.