No more Koralias for me... I really like the Maxi mods though, for the money they cant be beat...
you can mod a K2, K3, and K4 with the same sureflow kit... the black prop fits in the K2 and K3 and the white prop fits in the K4 (maybe the K3 too.) A white impellered K4 flows something like 3000gph.