Here is your sign to replace the Achilles heel of your factory cooling system! Taking cues from the reliable M50 thermostat setup we designed an assembly that not only converts your plastic housing into a beautiful billet aluminum unit but also exchanges the integrated thermostat for a standalone replaceable thermostat. To find this for your E46, on our site look up T#20617634 on our site! #Turner #turnermotorsport #turnerbmw #bmwturner #bmwmotorsport #tms #bmw #thermostat #e46 #m50 #bmwthings #bimmer #bimmerlife #bimmergang #mechanic #maintenance