I am not convinced Fuel pressure and volume are different between the pumps. Part numbers are also different. It makes no sense that BMW would produce a separate pump with different specs for no apparent reason. And the ti pump, while putting out the same pressure and volume as the M50/S50 pump, has a different part number. I plan to do a side-by-side physical comparison of the two but I suspect a different depth of the tank the main reason for the difference. __________________ Pierre 96 318ti (S52), 97 318ti, 95 318ti, 69 2002 (M20), 74 2002tii, 76 530i (3.3), 79 323i, 81 528i, 90 325i, 91 318is, 97 Z3, 2002 330i, 2002 R1150RT. O==00==O |