[slydin miata 619]

so i was on ebay and it has an auction for gtx turbo exhaust cams..
does anybody know if this will work well with 1.6 liters?
and what else do i need..like new valve springs or retainers
or further tuning? thanks in advance guys

heres a link to the auction
http://cgi.ebay.com/ebaymotors/MAZD...ryZ33742QQssPageNameZWDVWQQrdZ1QQcmdZViewItem