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 radiator issues, and trust me, this one stands out. CSF has been in the game for over 50 years, and they know what they're doing. With over 3,200 applications, they cover everything from Acura to Volkswagen, so there's a good chance they’ve got the right fit for your ride.

What I really appreciate about CSF is their attention to detail. Whether your setup is Copper-Brass, Plastic-Copper-Brass, Plastic-Aluminum, or all Aluminum, they match the OEM materials and style, which is a big deal for anyone who cares about their vehicle's integrity. These radiators are built tough, using high-quality components that are designed to perform. You can feel the difference when you’re driving, especially on those hot days or when you're pushing your car a bit harder.

One of the standout features is the OEM specified Plastic Tank-Aluminum Core Construction. The tanks are made from virgin-grade engineered plastic resins that are glass-filled for extra strength and durability. That means they can handle the heat—literally. The gaskets are made from special grade EPDM rubber, designed to withstand extreme temperatures, which is crucial for performance enthusiasts like us.

And let’s not forget about the fins. The multi-louvered design is where the magic happens, ensuring optimal cooling performance. Each radiator is leak tested at 150% of operating pressure before it even leaves the factory, so you know you’re getting a reliable product. Plus, they package these things like they’re precious cargo—seriously, they’ve got a “10-foot drop test” standard. You can trust it to arrive in one piece.

Now, let’s dive into the specs. This radiator is a crossflow type with a single row, measuring 23 5/8" in length, 13 5/8" in width, and 1 1/4" thick. The core is aluminum, while the tanks are made of that durable plastic I mentioned earlier. The inlet is on the upper driver side, and the outlet is on the lower passenger side, both with a diameter of 1 1/2".

It fits a range of BMW models, including the 2-Series (2014-2016), 3-Series (2012-2018), 4-Series (2014-2016), and i3 (2014-2021). Just a heads-up: when you’re swapping out your radiator, don’t forget to check the old pressure cap for wear and tear. It’s the little things that can make a big difference.

In short, if you want a radiator that’s built to last and perform, the CSF radiator is definitely worth considering. It’s not just about keeping your engine cool; it’s about keeping your ride running smoothly and efficiently.