CSF Race-Spec Oil Cooler 11-16 F20 135i(X)(N55) 11-16 F21 M135i(X)(N55) 12-16 F22/F23 M235i(X)(N55) 11-15 F30/F31 335i(X) & Hybrid 3 (N55) 12-16 F34GTCSF offers the best and most advanced Oil Coolers on the market. So when it comes to keeping your engine oil temps down as you push your N55 Powered BMW hard on the street or track, a CSF Oil Cooler is the obvious choice. Innovative 2 Core In Series System Secondary In Series Backside Cooler has an Additional 5 Rows of Cooling for a 40% Increase in Heat Rejection Made with CSF's AC Condenser Technology Using a 1 Row Super High Pressure 26mm Multi
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