This Mishimoto fan shroud kit for 1999–2006 BMW E46 (non-M) replaces the factory mechanical fan with a direct-fit electric assembly that bolts to stock or Mishimoto radiators. It includes a 16-inch high-flow fan producing over 1,850 cfm, a slim 3-inch profile to save engine bay space, and testing that showed up to a 22°F reduction in outlet temperatures at idle on an E46 manual vehicle.
Mishimoto 99-06 BMW E46 (Non-M) Performance Fan Shroud w/Fan Controller Kit