If you’re looking to keep your engine cool under pressure, the CSF radiator is a solid choice. I’ve had my fair share of experiences with radiators, and I can tell you that CSF stands out from the crowd. They’ve got a crazy variety of models—over 3,200 applications, which means they cater to just about every brand out there, from Acura to Volkswagen. So whether you’re rolling with a Copper-Brass setup or an All-Aluminum design, CSF has got your back with parts that match the original equipment in both style and material.

What really impresses me is the quality. CSF has been in the game for over 50 years, and they’ve sold more than 30 million units worldwide. That’s a lot of trust from car owners. Their radiators are built to high-performance standards and are rigorously tested in wind tunnels to validate cooling performance. You can really feel the difference when you’re driving hard.

The construction is top-notch, too. We’re talking about OEM-specified plastic tank-aluminum core construction. The tanks are made from virgin grade engineered plastic resins, which are "glass filled" for extra strength and durability. This means they can handle the heat—literally. The special grade EPDM rubber gaskets can take on extreme temperatures, down to -120°F. And let’s not forget about the fins; they feature a high-performance multi-louvered design that maximizes airflow and cooling efficiency.

Before they even leave the factory, each radiator is 100% leak tested at 150% of operating pressure. That’s peace of mind right there. Plus, they come packaged like they’re ready for a rough ride; CSF uses a “10-foot drop test” standard to ensure they arrive in one piece. During assembly, every component is installed, torqued, and tested, so you know you’re getting a reliable product.

As for the specs, this radiator is a downflow type with one row. The core measures 14 7/8" in length, 28 11/16" in width, and 5/8" in thickness, all made from aluminum. It’s designed specifically for the Mazda 6 from 2011 to 2013, so if that’s your ride, you’re in luck. The inlet and outlet locations are conveniently on the upper and lower driver sides, both with a diameter of 1 3/8". Plus, there’s a high-efficiency concentric oil cooler that measures 13 3/4".

Just a quick tip: when you’re swapping out your radiator, take a moment to check the old radiator pressure cap. It’s easy to overlook, but wear and tear there can lead to future headaches.

In short, the CSF radiator is a solid investment for anyone serious about keeping their engine cool and running smoothly. You won’t regret it.