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Description
CSF Performance Auto Transmission Cooler 21+ BMW G8XIf you're looking to keep your BMW G8X M3 or M4's transmission running cool, the CSF Radiators part number 8221 is worth considering. This high performance automatic transmission cooler is designed specifically for those who push their vehicles to the limit, whether on the street or the track. With a notable increase in cooling efficiencyaround 30%you can drive with peace of mind, knowing that your transmission wont overheat under pressure. Dual Core
If you're looking to keep your BMW G8X M3 or M4's transmission running cool, the CSF Radiators part number 8221 is worth considering. This high-performance automatic transmission cooler is designed specifically for those who push their vehicles to the limit, whether on the street or the track. With a notable increase in cooling efficiency—around 30%—you can drive with peace of mind, knowing that your transmission won’t overheat under pressure.
- Dual-Core Design: This cooler features a robust dual-core setup that enhances heat dissipation.
- Drop-in Fit: Installation is straightforward and requires no modifications.
- Compatibility: Can be paired with CSF's High-Performance Heat Exchanger (CSF #8215) or the OEM cooling system.
- Warranty: Comes with a 2-year limited warranty for added peace of mind.
- Performance Ready: Ideal for road racing, drag racing, and vehicles with enhanced performance or transmission tuning.
- Core Volume: Offers a 194% increase in core and tank volume compared to OEM parts.
- Fluid Capacity: 94% more fluid capacity (CSF 1700ml vs. OEM 875ml) ensures better cooling.
- Core Thickness: Two 22mm stacked cores provide a thickness of 44mm, compared to the OEM's 28mm.
- Row Count: Rear cooler features 16 rows, surpassing the OEM's 14 rows, while the front cooler adds an additional 16 rows.
- Advanced Technology: Made using CSF's AC Condenser Technology, featuring a 1-row super-high pressure 16mm 9-channel microtube for optimal oil flow.
- Optimal Airflow: Utilizes OEM top and bottom rubber seals for effective airflow.
- Quick Connect: Designed with OEM style "quick connect" inlet and outlet connections for easy installation.
- Core Material: Aluminum
- Core Row Quantity: 2
- Electric Fan: No
- Finish Color: Black
- Installation Type: Drop-in fit installation
- Thickness: 44mm
Many customers have noted how easy the installation was, with one reviewer stating, "I was pleasantly surprised by how straightforward the drop-in fit was. My M4 runs cooler than ever!" Others have commented on the noticeable difference in performance during spirited driving, with one enthusiast saying, "I can finally push my car without worrying about overheating. This cooler is a game changer!"
Products Fitment:
- BMW M2 2024
- BMW M3 2021-2024
- BMW M4 2021-2024
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.8 ★★★★★
Based on 945 reviews
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Product Reviews
★★★★★ 5
HEALTH & BEAUTY
Flavor Name: XL silicone socks 2 pairs
LOVE IT
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Reviewed in the United States on April 13, 2026
★★★★★ 3
Stains easily. Tight for men's size 11 feet
Flavor Name: XL silicone socks 2 pairs, Flavor Name: XL silicone socks 2 pairs
Husband wore dark cotton socks over these gel foot covers overnight and the covers picked up color from the socks. Tried hand washing, even dabbing with a bleach soaked paper towel, but the stains remained. The covers are a bit tight for men's size 11. Edit: After a few more hand washings the stains began to fade. However one tore around the leg opening when taking it off.
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Reviewed in the United States on August 10, 2024
★★★★★ 1
Worthless. Tore on first use.
Flavor Name: XL silicone socks 2 pairs
The first time I put these on my feet, the whole toe broke right through. They were a proper fit and my feet are well pedicured. Just very poor quality. I don’t recommend.
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Reviewed in the United States on August 2, 2024
★★★★★ 5
Best fit!
Flavor Name: XL silicone socks 2 pairs
Search no further, these are the BEST! They are smazing at conforming to the shape of your feet. They fit snuggly with no sags/bags or uncomfortable pressure or squeezing of your toes.
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Reviewed in the United States on March 8, 2025
★★★★★ 4
Helps dry, cracked feet
Flavor Name: XL silicone socks 2 pairs
We use these on my husband’s cracked feet in the winter and put on a thick cream under these socks. They are nice because hair, dirt and that kind of stuff doesn’t stick to the outside. I do wish them came in more sizes and colors. They were a little small for my husband, but still worked good enough. My husband isn’t thrilled about wearing pink socks around the house. At least it’s just around the house and not out in public though.
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Reviewed in the United States on March 6, 2025