CSF E6X M5 / M6 Race-Spec Oil Cooler

The CSF Design was inspired by the RPI SV1 design that was discontinued some time ago. This unit was highly regarded as the go to upgrade option for years and a must have for those who tracked or supercharged their M5/M6.

The original OE oil cooler from BMW is an all metal design which would make you think it would be fairly robust. However, there are several weak spots in the design that tend to cause leaks. The CSF Race-Spec design reinforces the weak points, especially around the feed and return lines.

CSF’s solid line connection block can handle any abuse thrown at it while the reinforced and braced return tube is rock solid. CSF also upgraded the more fragile Tub/Fin core to a robust and durable Bar/Plate design. The core is 40% larger than the factory unit with 2 additional rows of oil cooling and much thicker core (63mm vs OE 45mm). This offers superior cooling capacity and volume for the oil system. TIG welded end tanks round out the slew of upgrades creating a much stronger connection than the factory brazed construction.

Whether your M5/M6 is a casual cruiser or a track monster, everyone can benefit from an upgraded oil cooler. Supercharged S85’s will benefit the most though as the added power comes at a cost of more heat. High oil temperatures can quickly send a car into limp mode and as well as lead to catastrophic engine damage. CSF new engine oil cooler is also a great preventative maintenance upgrade to avoid costly repairs and extend the longevity of your vehicle.

Product Features:

• Fits all 2006-2010 E60 M5 and E63/E64 M6
• High Efficiency & Rugged Durability Bar/Plate Design
• “Aero-Flow” Bar Lightweight Construction for Strength and Maximum Flow
• Cast End Tanks with 100% TIG-Welded Construction
• Satin Black Finish for Extreme Protection Against Corrosion and Debris
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet Connection
• Requires minor trimming of the plastic shroud to install (instructions included)
• Individually Leak and Pressure Tested
• 2-Year Limited Warranty
• Replaces OE Part#: 17222282499 / 17222282699