I like the evo II sound but i want to get dual pipes on each muffler, i think it looks cleaner. I got a video up on Youtube with my evo II, you can hear the exhaust pretty good. Check it out:
http://www.youtube.com/watch?v=r99Y_3UxBrI
For the intake, i dont think it really matter that much. I like my JWT, but others are cheaper and probably just as good.