I recently got an ECIS intake. It comes with short ram tube, cone filter, and a heatshield. I got it after hearing one that a dude had at the track. My car now sounds completely badass. It sounds almost completely stock when keeping the throttle position below about a fourth to on half, but when you open it up or go WOT and get it above 3500, holy crap. You get a deep, throaty growl that scares the crap out of pedestrians. My friends thought I got an aftermarket exhaust when they heard me floor it by them.
It doesn't look as sweet as a dinan, but it still looks pretty cool, and it's not that expensive for what you get. I would recomend everyone get one who can a afford it.
Sorry, I don't have any sound clips. I recommend finding someone who has one and asking them for a ride or a drive by.