second, overhaul the entire cooling system. No point in doing 1 component when the others are bound to fail right after.

ECS has cooling system kits with all parts: http://www.ecstuning.com/BMW-E46-330...ngine/Cooling/

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#465420 National Capital Chapter
My Progress Thread
2000 323Ci | TiAg | Gray | AFE | UUC | Eisenmann | Koni | ACS Type III | Coby Wheel |
2006 X3 3.0i M-Sport | Silver Grey | Terracotta | Navigation | Premium Pkg | Cold Weather Pkg | AFE |