The warranty stickers are inside the case. They're attached to the drive sled and the inside wall. So essentially you can "legally" take off the outside cover and peek inside, but if you remove the drive sled, all bets are off.
Z~

Note: I dont encourage or recommend taking your empeg apart. If you do, and you break it, then you dumb. And its up to sonic blue to decide wether or not to honor your warranty... z.