Innovative 2-Core In-Series System
Front Core Features 14 Rows, Secondary In-Series Backside Cooler Has an Additional 5 Rows of Cooling for ~40% Increase in Heat Rejection
Converted to a Single-Pass Design with High-Pressure Return Line for Optimal Flow
Made With CSF’s AC Condenser Technology Using a 1-Row Super High-Pressure 26mm Multi-Channel Microtube
High Density, Multi-Louvered Fin Design for Maximum Surface Area Contact
“Drop-in Fit” Requires No Modifications to Install
Accepts All Attaching OEM Components Including Oil Line Connections, Mounting Brackets, and Shroud/Ducting
World’s First and Only True “Plug-and-Play” Upgraded Engine Oil Cooler for the BMW N55 Engine
Track Tested and Proven by Hittman Racing’s M235i Endurance Race Car
Requires an Additional 1/2 Quart for Proper Fill-Up During Installation (OEM Cooler 7 Qts./CSF’s Upgraded Race-Spec Oil Cooler ~7.5 Qts.) 
Part Number: CSF #8145
OEM: #17217618360
 
Fitment:
2011-2016 BMW F20 135i(x) (N55)
2011-2016 BMW F21 M135i(x) (N55)
2012-2016 BMW F22/F23 M235i(x) (N55)
2014-2016 BMW M235i Racing MS BMW Sport (N55) 
2011-2015 BMW F30/F31 335i(x) & Hybrid 3 (N55)
2012-2016 BMW F34GT 335i(x) (N55)
2012-2016 BMW F32/F33/F36 435i(x) (N55)