Why not get a 55mm(2 3/16") Koyo all-aluminum unit for $375 from this place? http://www.absoluteradiator.com/cgi-bin-store/SoftCart.100.exe/TheStore/p-KR1447A.html?L+scstore+gyzb9669cartIDffbad5ba+1028122760 Ben 92 SE-R