Gp thunder 7500k bulbs

Anybody try out gp thunder 7500k bulbs, im looking into replacing my stock ones with these (9005 and 9006, not sure which wattage i want). How are they?

ebay site
http://stores.ebay.com/Premiertek-net_GP-Thunder-Bulbs-7500K_W0QQcolZ4QQdirZ1QQftidZ2QQtZkm

Those are overpiced, you can find cheaper kits on ebay that will do the same thing.

i want a bright white light, what color temp should i go for

Go and get the Sylvania silverstars.