CSF High-Performance Radiator -  A9X Supra & BMW G-Series
SKU: 3580064317

CSF High-Performance Radiator - A9X Supra & BMW G-Series

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Description

CSF High-Performance Radiator - A9X Supra & BMW G-SeriesCSF is well known for making the best A9X Supra and BMW G Series cooling systems on the market. Naturally, they have been most successful with the B58 crowd. With years of feedback from Customers, Race Teams, and Development Partners, CSF has more B58 cooling experience than any other company in the world. With more and more people pushing the limits of the Supra, the factory radiator has started showing its limitations. Bigger turbos cranking out

CSF is well known for making the best A9X Supra and BMW G-Series cooling systems on the market. Naturally, they have been most successful with the B58 crowd. With years of feedback from Customers, Race Teams, and Development Partners, CSF has more B58 cooling experience than any other company in the world.

With more and more people pushing the limits of the Supra, the factory radiator has started showing its limitations. Bigger turbos cranking out more power create a lot more heat that needs to be dissipated. Furthermore, the heat exchanger is mounted directly in front of the radiator, so all the heat shed by the charge air system runs over it. In racing applications this can be detrimental to engine coolant temperatures and risk sending your Supra into limp mode. In addition, many of these cars are getting to an age where wear and tear necessitates replacement.  

CSF began development of the Supra radiator over 1 year ago with thorough race testing done by Titan Motorsports and Studio RSR. To give customers the best possible performance, CSF incorporated its latest 5mm fin cooling technology. This new fin technology increases the heat transfer area over a traditional radiator by 20-25%.

CSF vs OEM
The original OE radiator from Toyota/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 4mm 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.

With data collected by development partners and race teams, CSF was able to design the ideal High-Performance replacement. 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.


Feature CSF OEM
# Core Rows 2 1
# Cooling Tubes 69 81
# Cooling Fin Rows 70 82
Fin Height 5mm 4mm
Core Thickness 42mm 34mm
Core Material Aluminum Aluminum
Tank Material Aluminum Plastic
Construction 100% TIG Welded Crimp on Gasket



Real World Testing
CSF understands that this radiator will be used in motorsport competitions. While it would have been easy to engineer a good radiator and call it a day, CSF wanted to make the best possible radiator that would hold up under the most demanding conditions. This requires more development time with a lot more testing, but the result is the ultimate performance radiator you can depend on. CSF worked closely with two R&D Partners to test the radiators in multiple motorsport environments. These initial test units were made using CSF’s 42mm 2-Row core with 6.5mm fins.

Drag & Roll Racing
Titan Motorsports was the perfect partner to test the radiator for drag racing applications. CSF has a long relationship with the team at Titan Motorsports. They have one of the fastest A90 Supras in the world and compete in drag and roll racing competitions across the US. Over the past year, the Supra has been run in countless competitions in some of the hottest and harshest environmental conditions. Over the past year, the radiator has performed very well offering lower engine temps at both idle and during runs.

A9X Supra & BMW G-Series High-Performance Radiator Features (CSF #7226)

  • 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
  • 1-Hour “Mirror Finish” Hand Polish
  • True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
  • Individually Leak and Pressure Tested
  • 2-Year Limited Warranty
  • Applications:
    • 2020+ Toyota A90/A91 GR Supra
    • 2019+ BMW Z4 (2.0L & 3.0L)
    • 2019+ BMW G2X 330i & 330e (incl. xDrive)
  • Replaces OEM Part Numbers:
    • Toyota: 16400-WAA01
    • BMW: 17-11-8-666-739 / 17 11 8 666 739 / 17118666739
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3580064317

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GM
Los Angeles, US
★★★★★ 5
I got 6 years use out of it and just re-ordered a new one! Best grill cover I’ve ever purchased.
Size: 50 Inch, Color: black, Size: 50 Inch, Color: black
Very durable! I noticed earlier this spring that mine was starting to rip after several strong spring wind storms. I knew I had had it for several years but I wasn’t sure how long. I went in my orders page and saw that I ordered it back in 2020 so I got 6 years out of it!! Note that it stays outside on the deck all year round, and that includes during Northeast US winters with frigid temperatures and snow and I only now started to see the tears in it this spring. The tear started at the top of the grill, and actually started falling apart more after I touched it. Refer to the attached photos of mine after 6 years. I think it’s very durable for sitting outside for 6 years and only now only starting to show wear . You can also see how it didn’t really fade despite getting full afternoon sunlight. The velcro ties at the bottom,are also a plus as far as getting it to stay in place and not blow off. That’s why I definitely just repurchased the same one. Hopefully, I will get at least 6 years out of the new one when it arrives tomorrow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
S
Verified Purchase
Scott B.
Pawtucket, US
★★★★★ 5
Water Shoes for 3-Week Trip to Amazon, Machu Picchu and the Galapagos
Size: 10.5, Color: Blue/Grey
Bought these shoes (along with a pair of Merrell Gore-TEX Moab Speed 2 GTX) for a three-week trip through some pretty eclectic weather and terrain. I selected these over some much more expensive brands and was very happy with my decision. I typically wear a size 11 athletic shoe (I measure a 10.5), but the 11–11.5 Humtto shoes were way too large and good not get a good fit. I returned that pair, and downsized to the 10.5. They fit me perfectly. Before leaving on the trip I used them to work out at the gym and do some light hiking. They were first seriously tested in the Amazon. The soles provide pretty darn good traction, and they can be worn with or without socks. Because of their hiking and quick drying capabilities, I ended up using these shoes about 50% of the trip. They look great, are comfortable, can be adjusted for fit, and have a decent (medium) arch and heel padding. They are not zero drop from heel to toe, but pretty close. The EVA midsole and memory foam insole for cushioning is great, but do not make the mistake I made by heating it on a heater to accelerate drying. It warped the insole a bit (they are still usable). These are great and survived some pretty extensive testing throughout Peru and Ecuador. If you are stepping into some pretty questionable conditions, these sure are a great back up to your hiking shoes when it may get sloshy and dry shoes are required for the next day.
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Reviewed in the United States on May 3, 2026
S
Verified Purchase
Storm Boen
Carnegie, US
★★★★★ 5
Excellent shoes for what you’re buying them.
Size: 12, Color: Black
My 2nd pair of this brand. These are awesome. Easy to come off and get on. They stay cool in the summer, they are comfortable with or without socks. I use them in lake and pool, and they still look new. Very inexpensive, and for a change they look actually nicer in person than in the photos. I dont know how they would be doing any athletics but for everything else, including walking a lot and standing for hours, they worked great.
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Reviewed in the United States on May 14, 2026
S
Verified Purchase
ShoppingB
Lowell, US
★★★★★ 5
Surprisingly awesome!
Size: 10.5, Color: Dark Gray/Beige
I have only been wearing these for a few days so I may have to revise the review over time, but so far these shoes are absolutely outstanding. If you owned and enjoyed the original Salomon TechAmphibians, later ruined with new designs by the maker, these are their natural heirs. I took a chance on these shoes since the design is very similar. They are lightweight and comfortable and they provide great footbed support whether loose or tightly laced. Like the early TechAmphibians, they also have the cool feature of a collapsing heel upper, allowing their use as slides. They are also half the price that the Salomons sold even 10 or more years ago. The sole has an aggressive tread pattern and is quite grippy wet or dry. I measure as 10.5 D on the shoe size device but almost no shoes in that size fit me in the last few years. I got the 11-11.5 size first but it was swimming on me. 10.5 fits well with a bit of extra room so I can wear them with or without socks.
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Reviewed in the United States on May 12, 2026
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Verified Purchase
E. M. Zobrist
Chelsea, US
★★★★★ 4
Great shoes
Size: 10, Color: Grey, Size: 10, Color: Grey
I got 2 pairs of these specifically for a water rafting trip. The first pair was a little large, so I went down a half size ( and gave the larger pair to my son). They are comfortable, even for wide feet - although after a long day of use in the water, there was some chaffing on the outsides of my feet. It loosened up a bit across my wide foot, after getting wet. These worked great! They have adjustable strap across the back, that pulls tight on the outside. the laces are elastic and tighten by pulling and then pushing the stopper down onto the laces. They didn't slip (loosen) but, to get them tight, I had excessive amount of laces hanging out (had to tuck them into the tongue.
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Reviewed in the United States on September 2, 2024

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