CSF’s Race-Spec Oil Cooler for BMW F3X 335/435 N55 is built for performance and it has a secondary in-series backside cooler that has an additional 5 rows of cooling for a ~40% increase in heat rejection. CSF prides itself on using the most advanced technologies, machines, and experienced personnel to design, develop, and manufacture the world’s best cooling systems.

With three privately owned, ISO-certified manufacturing facilities that supply to local OE brands, CSF houses the industry’s best manufacturing equipment. CSF’s oil coolers are suitable and designed for engine oil, transmission oil, power steering, and differential fluid, or can be used as a substitute for water heat exchange in a higher boost or more vibration-intensive application. Every CSF product goes through a testing process in our state-of-the-art testing lab.

Our procedures and requirements set the bar for cooling system reliability and performance:

• Individually Leak Tested
• Vibration Cycle Tested
• Thermal Cycle Tested
• Wind Tunnel Tested for Optimal Radiator Core Cooling Efficiency
• Burst Pressure and Impulse Cycle Tested 10,000 Times for Strength
• Salt Spray Tested for Corrosion Protection
• 10 Foot Box “Drop Test” to Ensure Packaging Protection
• 30-Point Fitment Inspection on Critical Dimensions to Ensure OE Style Fitment with No Modifications Necessary
• ISO Certified QC Inspection Procedures With Multiple Stages of Quality Control Throughout the Production Process