I've got some parts left over from a failed plan to upgrade to SWS-8s.
supraken has a set FS if someone's looking for them at a good price.
Underseat Sub Enclosures - SOLD Sub enclosures from Logic 7 Subs. Includes top grills and all screws.
Famous jtsherri SWS-8 adapters - $40 Shipped Adapters for SWS-8 fitment in place of stock underseat subs. Brand new and unused, great quality pieces (look to be injection molded). Paid jtsherri $47 shipped for these a few months ago.
SWS-8 plug and play harness - SOLD Simple harness used to keep your car's original wiring unmodified if installing SWS-8s.
I combine shipping and can usually set up a time to meet in NYC.