CSF Cooling 8042 Race-Spec Transmission/Oil Cooler for BMW E9X M3 335i

BMW E9X M3 / 335i / E8X 135i Race-Spec Transmission/Oil Cooler The engineers at CSF know cooling. So when it comes to keeping your transmission temps down as you push your M3 / 335i hard on the street or track, the CSF Trans/Oil Cooler is the obvious choice. With an increase in cooling efficiency of around 30%, you can drive with confidence knowing you won't be damaging your expensive transmission due to overheating. 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 approximately 30% More Efficient than OEM Cooler