1. They list @ $400 on horsepowerfreaks.com. These have like 60 miles on them. Say $350? They've all been carefully weighed and are exactly the same weight.
2. Make offer. Don't really care.
3. 1000.00 They fit both Type R and GSR as the flange was machined for extra holes for studs of both types. Comes with vaccum log, filters, and velocity stacks.