If you're into classic cars, you know there's something special about those older models. They just hit differently, right? Whether it's the nostalgic vibes or the raw driving experience, there's a connection that newer cars just can't replicate. Among the classics, the BMW E28 M5 and E24 M6 really stand out. These beauties were among the first M cars BMW ever cranked out, and they still turn heads today.

But let’s face it, those original cooling systems from the '80s? They were decent for their time, but they can’t hold a candle to today's tech. If you want to keep your classic running cool, you need to check out the CSF High-Performance All-Aluminum Radiator designed specifically for the E28 M5 and E24 M6.

Design & Engineering

This isn’t just some off-the-shelf part. CSF teamed up with A/C Solutions to create this radiator, and they’ve got a real enthusiast behind the wheel—Austin Caccavo, who’s been in love with the E28 for years. He started his journey by upgrading the A/C on his own car and ended up collaborating with CSF to develop a radiator that fits like a glove and performs even better.

Why Upgrade?

The stock radiator is an aluminum core with plastic tanks, which was pretty standard back in the day. But we’ve come a long way since then. The CSF radiator boasts a 1-Row 31mm aluminum core that vastly improves heat dissipation. Thanks to CSF's Exclusive B-Tube Technology, you get about 15% better heat transfer compared to those old-school oval tubes. Plus, with nearly double the number of cooling fins and tubes, this radiator is a major upgrade over the OEM unit.

It’s designed to mount right in the factory spot—no cutting or modifications needed. Just drop it in and you’re good to go. And let’s talk about durability: the TIG-welded all-aluminum construction means it’s built to last, even if you like to push your car to its limits.

Little Details Matter

One thing that’s often overlooked is the drain plug. The original radiators don’t come with one, which can make maintenance a hassle. But with the CSF radiator, you get that handy drain plug, making coolant flushes and engine pulls a whole lot easier.

Features

• 1-Row 31mm Ultra-High-Performance Core
• Cooling Tubes with CSF's Exclusive B-Tube Technology
• 6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
• 100% All Aluminum TIG-Welded Construction
• Satin Black Finish for an OEM+ Look and Feel
• True Plug-and-Play "Drop-in Fit" Installation Requires Absolutely No Modifications
• Two M14x1.5 Temperature Sensor Ports on left side tank (Plugs Included)
• Individually Leak and Pressure Tested
• 2-Year Limited Warranty
• OEM Part Numbers:
  • BMW: 17-11-2-226-082
  • BMW: 17-11-2-225-061
  • BMW: 17-11-2-226-018

Fitments

• BMW E28 M5 (US and Euro) 1984-1988
• BMW E24 M635CSi 1984-1989
• BMW E24 M6 1987-1989

So if you’re looking to keep your classic BMW running cool and performing at its best, the CSF High-Performance Radiator is definitely worth considering. It’s a solid investment for anyone who truly appreciates these iconic machines.