SKU: 7537800421

CSF Performance BMW E46 M3 Triple Pass High-Performance All-Aluminum Radiator

Sale price$359.56 Regular price$399.51
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

CSF Performance BMW E46 M3 Triple Pass High-Performance All-Aluminum RadiatorCSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your E46 M3 running at its best, a CSF High Performance All Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. The Triple Pass Flow Structure

CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your E46 M3 running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. The Triple-Pass Flow Structure allows the coolant to flow across the core of the radiator three times before exiting for lowest outlet temperatures possible. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.The CSF E46 M3 radiator is a true "Drop-in fit" design requiring no modifications to install. OE style brackets are all CNC machined and welded for the best durability possible. Inlet/Outlet connections are designed to match the OE connections so you can reuse OEM hoses or aftermarket.

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: 7537800421

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M. Fullerton
New York, US
★★★★★ 5
Fair quality shirt
Size: Large, Color: Port Red
Decent shirt. No shirt if wrinkle-free so take these claims with a grain of salt. The fabric blend will tell you just how much it will wrinkle. If you leave it in the dryer overnight you can guarantee that even if it was made of cast iron, it would likely have a wrinkle or two. Don't be swayed by a 'label'. The same shirt can have a no-name label sewn on it. Doesn't make the shirt better or worse. It is what it is. Size runs correct. NOT a 'slim fit' shirt, fyi.
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Reviewed in the United States on April 1, 2024
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William
Battle Creek, US
★★★★★ 5
Good cheap watch
Color: Black Black
Nice cheap watch that gets the job done and looks good
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Reviewed in the United States on April 16, 2026
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Winston
Chelsea, US
★★★★★ 3
Two tone color
Color: Silver GunColor, Color: Silver GunColor
I guess it’s good enough for what you pay but the band and base of the watch color do not match and it’s noticeable.
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Reviewed in the United States on December 8, 2025
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J.H.
Port Orchard, US
★★★★★ 5
Good quality
Color: Gold Black
Nice watch
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Reviewed in the United States on December 28, 2025
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Kasie
Lake Worth, US
★★★★★ 5
Great watch for preteen and above
My 12yo loves this. It’s stylish, durable and a great quality.
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Reviewed in the United States on November 9, 2025

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