CSF E46 M3 Aluminum Dual-Pass Race Oil Cooler

Designed, Developed, and Track Proven in Collaboration with BMW M3 Tuning Specialist and Parts Manufacturer, Rogue Engineering Replaces OEM Unit Single-Pass Design and Plastic Shroud with a Unique Top/Bottom Dual-Pass Design for Maximum Surface Area and Flow “Drop-in Fit” Requiring No Modifications to Install – Accepts Factory Oil-Line Connections Fully TIG-Welded Extruded-Endtank Design vs. OEM Mechanically Jointed and Tack-Welded Design for Superior Reliability & Durability Fits Precisely with the Contour of the OEM Bumper – No Issues with Aftermarket Splitter Attachment Turbulated Heavy-Duty Bar/Plate Design for the Most Reliable & Durable Oil Cooler Available for the Platform 8 Rows of Maximum Cooling with a High Density Multi-Louvered Fin Pitch Design Designed to Work with OEM Radiator Brackets or CSF’s All-Aluminum Triple-Pass Radiator (CSF #7058) and S54 Swap Radiator (CSF #7211) Motorsport Silver Finish OEM #: 17212228942