Do not buy them from Crutchfield they way over charge. The Q-Logic custom from them is $230. I got it for $169 from thezeb.com. I didn't have any problems with them and if you want to get it even cheaper, have Sound Domain do the 105% price match.
I'm hoping my JL Audio Vantage box will be in this next week.
Actually ask your local stereo place. The MSRP for the JL was way over $200 and I almost s--t my pants but then he was like, I'll give it to you for $179. I don't know if that's because he felt bad teh Q-Logic didn't work or what but I was happy to hear it's only $10 more than the Q-Logic. Just call and ask and you could always wait until they have a sale on everything.
Has anyone installed dual stealth boxes? I know they make them for the different sides for the different years. I thought that one on each side would be unique. You'd just have a little relocation to do (jack, etc..). Just a thought.