fitment M50 = 2.5L single vanos, no? the intake manifold you are suggesting from the S50 is the same part that is on the M50... I've had 2.5L, 3.0L, 3.0L, 3.2L, 3.2L+ in my 318ti for years now, so i do know what works and what doesnt... t/b is the same too for obd1 6-cylinder the M52/S52 intake manifold has shorter runners - 'better' for more low end throttle response but lacks the peak flow numbers up top as compared to the OBD1 M50/S50 intake manifold |