CSF Radiators

E-Chassis N55 Race-Spec Oil Cooler

  • Sale
  • Regular price $599.00


  • Made with CSF’s AC Condenser Technology Using a 1-Row Super-High Pressure 22mm Wide 11-Channel Microtube
  • Dual-Pass High-Performance Core with 11 Cooling Tubes vs. OEM 10 Tube Design
  • High-Density Multi-Louvered Fin Design with 20% More Surface Area Contact Compared to OEM Unit
  • “Drop-In Fit” Requiring No Modifications to Install ­– Accepts All Attaching OEM Components Including Oil-Line Connections, Mounting Brackets and Shroud/Ducting
  • Lab Tested at ~30% More Efficient than OEM Cooler
  • World’s 1st True “Plug-and-Play” Transmission Cooler for the E9X M3 Platform
  • OEM #: 17227521376 

Year Model Sub-Model Chassis Code Engine Code
07-11 335i(xi) Sedan E90 N55
08-13 335(xi) Coupe E92 N55
08-13 335i Convertible E93 N55
09-15 X1 35iX SUV E84 N55