CSF's factories are ISO certified, and are OE suppliers to many US, German and Asian manufacturers. When you purchase a CSF cooling product, you can be rest assured that it has been manufactured on the same production lines with the same high quality standards as their OE customers. Every single radiator is subject to rigorous testing procedures such as Hydrostatic Testing, Vacuum decaying and life cycle testing, and is designed to always be a "drop-in fit".

• Fits all 2007-2013 E9X M3
• Made with CSF’s AC condenser technology using a 1-row super-high pressure 22mm wide 11-channel microtube
• Dual-pass high-performance core with 11 cooling tubes vs. OEM 10 tube design.
• High-density multi-louvered fin design with 20% more surface area contact compared to OEM unit.
• “Drop-in fit” requiring no modifications to install. Accepts all attaching OEM components
• including oil-line connections, mounting brackets, and shroud/ducting
• Lab tested at ~30% more efficient than OEM cooler
• World’s 1st true “plug-and-play” transmission cooler for the E9x M3 platform
• Replaces OE Part#: 17227521376