I haven't heard much on Suspension Tech. Eibach has been on the scene for many years, and they're probably the best bet to go with. You may pay a little more now, but in the long run you'd be more satisfied with the product.

As for the possibility of a drooping rear end, while the wagon has more weight, I don't think it'd be significant enough to detect any differences using the naked eye. You can ask a respected dealer who may have had experience lowering any wagon versus sedan curb weights if such a problem may occur.

KYB makes excellent shocks, although I haven't had any experience with the AGX. My bet is that they're as good as any other product that KYB makes. Tokico is also a good company, but personally I'd stick with the KYB's.

But either of the two choices (KYB ro Tokico) won't be a bad one.