hi guys n gals, need some hints on the manual tranny.. heard it can be done.. can i have the gear ratio for them( 318is n 325i).. n wat are the unlikely probs ahead?.. any diff in performance.?.. how about the flywheel?. heard albundy mentioned tat b4.. if it were to install it into 325, is the ratio same(318is=325 or 325=318is)? went thru the info, 325i is using the S5D200/250 getrag and also the ZF 310/320Z.. which is which by the way..? so, 318is is in which category then?. im seriously confused.. thks.. n have a nice weekend..!