lol... $16k+ for a transmission with a "stock" feel... helical gears. yay.
$15k+ for the straight cut ones i guess. pretty nuts.
if i had $16k to invest in my car would i get it? hell yes. 6 speed would be sick. maybe if i keep my car forever, and i'm stuck at stage V, and i have no other cool mods to do (i'll never do NAWWWWS!) i'll do a 6 speed after saving up forever. it would be the ULTIMATE mod. would be some crazy custom work to get it to work though.
EDIT: wait a minute... it doesn't really say on the site, maybe i'm a retard, but does this thing have a reverse gear?