CSF Performance BMW E9X M3 / 335i / E8X 135i Race-Spec Transmission/Oil Cooler | CSF-8042

The engineers at CSF know cooling. So when it comes to keeping your transmission temps down as you push your M3 / 335i / 135i 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.
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