CSF Triple Pass Radiator (BMW E9X M3)


CSF‘s ultra-high quality All-Aluminium Triple-Pass Radiator for the BMW E90, E92 and E93 M3. A true must for all E9X M3s for fast road, track or race use or with tuned/force-induced engines.


  • 2-row 42mm core (dual core) featuring CSF‘s exclusive B-tube technology
  • Core features an ultra-efficient fin with 6.5mm fin height and multi-louvered design for maximum surface area contact
  • Triple-pass flow structure allows the coolant to flow across the core of the radiator 3 times before exiting the radiator for lowest outlet temperatures possible
  • CNC-machined ‘quick-connect’ inlet/outlet connections
  • CNC-machined brackets and fittings for superb fit and durability
  • All-aluminium race-style drain plug
  • 1 hour ‘mirror finish’ hand polish
  • ‘Drop-in fit’ requiring no modifications to install
  • Accepts all attaching OEM components including ‘quick-connect’ hoses, AC condenser, mounting brackets and fan shroud