CSF 11-16 BMW 135i(X) 5 Door F20 / M135i(X) 3 Door F21 Race-Spec Oil Cooler

We use UPS, FedEx, DHL, and USPS for deliveries. We are not responsible for any shipping problems and shall not be held liable for any "reasonable" delay beyond our advertised delivery time-frames. Shipment by Ground Courier can take up to 15 business days for delivery. Express Courier can take up to 3 business days for delivery. Shipping time frames are once the order has been processed. Due to high demand, order processing can take 5 to 7 business days.

Utilizing CSF's AC Condenser technology, their innovative dual-core in-series system features an additional 5 rows of super-high pressure multi-channel micro-tubes on the rear side of the oil cooler. The high performance tube spec, along with the high-efficiency multi-louvered fin design allows for maximum surface area contact and an approximate 40% increase in heat rejection. The High-Performance Race-Spec Oil Cooler directly replaces the factory unit, easily bringing engine oil temperatures down to a consistent and manageable level, even under extreme & extensive driving conditions.

• "Drop-In Fit" Requiring No Modifications to Install - Accepts All Attaching OEM Components Including Oil-Line Connections, Mounting Brackets and Shroud/Ducting
• Requires Additional Half Quart for Proper Fill-up During Installation (OEM Cooler: 7 Qts./ CSF's Upgrade Race-Spec N55 Oil Cooler: 7.5 Quarts)
• 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-Channel Microtube
• World's 1st and Only True "Plug-And-Play" Upgraded Engine Oil Cooler for the BMW N55 Engine
• Converted to a Single-Pass Design with High Pressure Return Line for Optimal Flow
• High-Density Multi-Louvered Fin Design for Maximum Surface Area Contact
• Track Tested and Proven by Hittman Racing's M235iR Endurance Race Car
• Innovative 2-Core In-Series System

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