SKU: 23974453884

CSF BMS F-Chassis Gen 1 B58 High Performance All-Aluminum Radiator

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Description

CSF BMS F-Chassis Gen 1 B58 High Performance All-Aluminum RadiatorProduct Details: CSF BMS F Chassis Gen 1 B58 High Performance All Aluminum Radiator Overview: As Gen 1 B58 powered BMWs in the F3X and F2X platforms have racked up miles and dropped in price, theyve become go to choices for tuners, track day enthusiasts, and weekend warriors alike. With aging factory components and a growing number of owners modifying these cars, demand for motorsport grade performance parts has surged. For those looking to push their

Product Details: CSF BMS F-Chassis Gen 1 B58 High Performance All-Aluminum Radiator

Overview:

As Gen 1 B58-powered BMWs in the F3X and F2X platforms have racked up miles and dropped in price, they’ve become go-to choices for tuners, track-day enthusiasts, and weekend warriors alike. With aging factory components and a growing number of owners modifying these cars, demand for motorsport-grade performance parts has surged. For those looking to push their Gen 1 B58 to the limit, upgrading the cooling system has quickly become a top priority.

CSF, the industry leader in high-performance BMW cooling, is the top choice for F3X and F2X owners who want more than just OEM reliability. Whether you’re building a serious track machine or simply want a bulletproof upgrade, the new CSF High-Performance Radiator delivers unmatched durability and cooling efficiency for your Gen 1 B58 BMW.

  • 2-Row – 42mm Ultra-High-Performance Core
  • Cooling Tubes with CSF’s Exclusive B-Tube Technology
  • New 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
  • Hand Brushed Satin Finish
  • True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
  • Individually Leak and Pressure Tested
  • 2-Year Limited Warranty
  • Applications:
    • 2016-2019 BMW F3X 340i (incl. xDrive)
    • 2017-2020 BMW F3X 440i (incl. xDrive)
    • 2017-2021 BMW F2X M240i (incl. xDrive)
    • 2016-2019 BMW F2X M140i (incl. xDrive)
    • 2017-2019 BMW F3X 330i w/ M Sport Package (incl. xDrive)
    • 2017-2020 BMW F3X 430i w/ M Sport Package (incl. xDrive)
    • 2017-2020 BMW F2X 230i w/ M Sport Package (incl. xDrive)
  • OEM Part Numbers:
    • BMW: 17-11-8-482-623 / 17 11 8 482 623 / 17118482623

Design & Engineering

CSF has built a reputation for producing the best B58 cooling systems on the market. Backed by years of experience and input from customers, race teams, and development partners, CSF leads the industry in Gen 1 B58 cooling technology.

As more enthusiasts push the performance limits of F-Chassis BMWs, the factory radiator has started to show its age. Increased boost and upgraded turbos generate significantly more heat, and the stock system can struggle to keep up. Combined with the heat exchanger mounted in front of the radiator, engine coolant temps can get too hot, especially during track use which can trigger limp mode.

On top of that, OEM plastic radiators degrade over time. With clogged tubes, damaged fins, and a higher risk of cracked tanks or gasket failure, replacing the stock radiator becomes essential for long-term reliability and performance.

Key Design Features:

  • 20–25% increase in heat transfer efficiency using CSF’s exclusive 5mm fin technology
  • Improved cooling performance to support high-boost, big-turbo builds
  • All-aluminum construction for superior durability over OEM plastic tanks
  • Designed to work seamlessly with factory or aftermarket heat exchangers

Whether you’re building a street sleeper or prepping for your next track day, CSF’s Gen 1 B58 Radiator is engineered to handle the heat and then some.

CSF vs OEM

The original OE radiator from BMW is a plastic tank with a single row aluminum core design. While this is generally accepted as good quality and durable, there is always room for improvement. The 4.5mm fins on the OE radiator made the system fairly efficient for a factory unit. The core itself is one of the biggest limiting factors at only 34mm thick and a single cooling row.

The CSF radiator features the latest 5mm fin technology. These fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow. The core is much larger than the factory featuring 2-Row 42mm aluminum core. This both increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance.

The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. The CSF radiator mounts in the factory location and requires no modifications or cutting.

 

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 23974453884

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Owen
Waukegan, US
★★★★★ 5
Well made sandals
Nice sandal that works well for me, feet sit comfortably in the shoes. I’m a quadriplegic that needs someone to wrestle my legs while putting my shoes on for me. These go on fairly easily. I have short legs and the extra height of the sandals helps to reduce the pressure on the back of my legs while my feet are on the legrests. Also my ankles tend to buckle and cause my feet and shoes to roll over onto the side of my foot. The soles of the UGG Goldenglow are wide and flat, substantially reducing this tendency. As far as comfort and function while walking, I can’t speak to that.
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Reviewed in the United States on February 25, 2026
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PrettyInPink
Belleville, US
★★★★★ 5
So comfortable but only lasted 5 months…
Size: 9, Color: Sea Salt, Size: 9, Color: Sea Salt
I was hesitant to buy these without being able to try them on, but I’m so glad I did! They are incredibly comfortable. I am on my feet for a large portion of the day as a school principal and these feel amazing all day. They’re very adjustable so if you have feet that swell (or just fatter feet like me) these should be able to accommodate you. They are clunky but really cute! They’re also easy to clean. I’ve worn mine just about every day since I received them and can easily wipe them down with a wet paper towel to make them look new. They will occasionally trip you up if you’re not careful, the same way Ugg boots can do, but that hasn’t been a big problem for me. They’re very lightweight and versatile. Love them! Update: I probably just wore these too hard because today I was walking the school hallway and the shoe just snapped. One of the sides was completely unattached and within 30 minutes they were only on my foot by one strap. Super disappointed!! But I loved them enough that I ordered another pair to get me through until boot weather.
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Reviewed in the United States on June 2, 2024
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Draper, US
★★★★★ 4
Great shoe, room for improvement
Size: 7, Color: Bison Brown
I wore these to a 2 day music festival and my feet were so comfortable dancing and walking all day. Got a little sore by the end of the night, but the only thing that would have been more comfortable would be athletic sneakers so that pretty good for such a cool looking sandal. Sizing is off tho. I am a 7-7.5, and I ordered a 7. Length wise theyre good, but maybe I have skinny feet because I had to strap the 3 Velcro straps as tight as they could go, especially the heel one. Maybe I would have been better going down a size because I want to have my feet feel super snug and secure in sandals, especially if I’m dancing. But overall great sandals and honestly I’d buy them again
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Reviewed in the United States on June 25, 2024
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Nicky
Dallas, US
★★★★★ 1
These sandals are massive
Size: 9, Color: Bison Brown
These sandals are super bulky and fit on the larger size. I would recommend tou size down 1/2 to 1 size.
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Reviewed in the United States on May 30, 2026
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Sarah G.
Chelsea, US
★★★★★ 5
comfy!
Size: 9, Color: Bison Brown
These are my favorite summer sandal. Super comfortable and so versatile with any style of clothing.
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Reviewed in the United States on April 29, 2026

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