There is no questioning that the V10 S85 is an amazing motor. However, it does come with its own set of issues. One of those is the sheer amount of heat it produces. Keeping oil temperatures in check can be quite a challenge for the M5/M6. It is not uncommon to see oil temperatures spike to dangerously high levels during performance driving. This is in addition to the factory oil cooler being prone to leaking and cracking. The new CSF E6X M5/M6 High-Performance Oil Cooler solves both these issues.

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.

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.

• 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

• Applications:
  • 2006-2010 BMW E60 M5
  • 2006-2010 BMW E63/E64 M6

Replaces OEM part number 17222282699.