- 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
- 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
- Motorsport silver finish
E46 M3 CSF Race-Spec Engine Oil Cooler
Active Autowerke is proud to offer CSF's Race Spec Engine Oil Cooler for your E46 M3! This is the perfect addition to your S54 to help keep those oil temps down. It is especially modified vehicles as well any cars that see the track!
We run these on all of our track cars and recommend them to any E46 M3s that see track time or have performance modifications.Designed, developed, and track proven in collaboration with BMW M3 tuning specialist and parts