I was working in the driver side fenderwell and saw the intake resonator box. Figured I'd pull it out to see if I can get a little more intake grunt. Couldn't find much info on the forums here, so I thought I'd post pics.
If you do this, you'll find little plastic washer things between the chassis and the mounts. Not sure what they're for, but they're small so be careful not to lose them.
Resonator removed, and mounts reinstalled to keep crud out of the bolt holes:
Picked up a "test plug" at home depot. Never seen one of these before, but I imagine the CVT working under the same principle as this thing. As you tighten the wing nut, the two halves come together and expand the rubber seal.
Here's how it looks installed on the pipe. Has to be tightened pretty much all the way, but it grips nice and hard - definitely no risk of it falling out.
Do you guys have this same dent on your intake pipe? I tried to pop it out but it feels permanent, as if it's there on purpose.