SKU: 55490676852

CSF High Performance Transmission Oil Cooler - BMW / G8X / M3 / M4

Sale price$371.98 Regular price$413.31
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Description

CSF High Performance Transmission Oil Cooler - BMW / G8X / M3 / M4In stock form the G8X is an impressive machine, but its tuning potential is where the magic really happens. However, whenever you start pushing power on a car, you need to make sure the cooling system can keep up. CSFs new G8X M3 M4 Transmission Oil Cooler for the ZF8 Automatic should definitely be at the top of your list. CSF worked closely with development partner, sponsored race team, and premier local CSF Dealer Studio RSR as well as Time Attack


In stock form the G8X is an impressive machine, but its tuning potential is where the magic really happens. However, whenever you start pushing power on a car, you need to make sure the cooling system can keep up. CSFs new G8X M3/M4 Transmission Oil Cooler for the ZF8 Automatic should definitely be at the top of your list.  

CSF worked closely with development partner, sponsored race team, and premier local CSF Dealer Studio RSR as well as Time Attack Teams such as Art of Attack and Velocity Performance on the ZF8 Automatic Transmission Oil Cooler. Their insight, experience, and testing feedback provided invaluable insight into designing the best cooler possible.


Design, Development, and Testing

While the OEM Transmission Cooler is adequate for the G8X in stock form, it starts to come up a bit short on modified/tuned vehicles. Specifically ones that see heavy track/competition use. Transmission oil temperatures have a major impact on the shifting performance of your automatic transmission. If the fluid passes optimal temperatures you will start to see some delays in shifting. Sluggish shifting can be quite frustrating, but the real concern is the damage that can be done to the transmission when temperatures get too high. There are often cases where drivers dont notice the change in shifting performance due to the gradual onset, but the damage is still being done slowly on a very expensive and important component.

Dual-Core Advantage

By changing from the OEM single core design to a dual core, CSF was able to increase the overall volume by 194%. This design offers a drastic improvement in heat dissipation and increases the fluid capacity of the coolers by ~94%. Utilizing CSFs AC Condenser Technology, a 1-Row Super-High Pressure 16mm 9-Channel Microtube design optimizes oil flow and offers maximum surface area contact. These features combine to offer the best possible heat dissipation from the system.

Rock Guard

CSF knows the kind of punishment the front of a car can take on or off the track. The wrong bit of debris flying through the front grille can quickly punch a hole in a cooler. Because the Transmission cooler sits at the very front of the center cooling stack, it is quite vulnerable to damage. In addition, open face race style grilles have become quite popular on the G8X. These grilles can add to the risk of debris passing through.

The factory grille is the only form of protection for the OEM transmission cooler. However, this still isnt the level of protection many race teams and enthusiasts are comfortable with. To address this concern, CSF has incorporated a replaceable rock guard to keep your cooler safe and your G8X running strong in the event of debris making it through the front grille.

 

Feature OEM CSF
Core & Tank Dimensions 553mm (W) x 155mm (H) x 28mm (D) 555mm (W) x 191mm (H) x 44mm (D)
Tubes & Rows 13 Tubes & 14 Rows 15 Tubes & 16 Rows
Fin Height 8mm 8mm
Design Single Core
Single Pass w/ Feed Pipe
Dual Core
Dual Pass (front to back)

The CSF Transmission Cooler features a unique dual pass design. You can see in the diagram below how the OEM Coolers single pass design works by flowing across the core and back through a feed pipe. While perfectly functional, this gives some extra height to work with if you can eliminate the feed pipe.

The engineers at CSF came up with this unique design to take advantage of the extra vertical space while adding extra capacity and a dual pass system. This design essentially doubles the cooling capacity while still fitting perfectly in the OEM position with no modifications necessary.

Testing & Feedback

Studio RSR tested the new Transmission Oil Cooler on their G80 M3 Time Attack car during several events. The team competes in Global Time Attack events year round. In addition, their G80 M3 spends many weekends at the track to test new setups and modifications. Their experience and feedback on the real world performance of CSF products has been key in the development of all the new G8X cooling products.

There was a noticeable reduction in transmission temperatures on track. The combination of the transmission temps being in check and the new rock guard gave us extra peace of mind while on both the track and road.

STUDIO RSR

Velocity Performance has also been running the Transmission Oil Cooler along with the Front Mount Heat Exchanger (CSF #8215) on their G82 M4 track car. They have been very pleased with the performance of both.

Shipping Notes
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SKU: 55490676852

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4.3 ★★★★★
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dmart
New York, US
★★★★★ 5
USED FOR SINUS ISSUES WITH GREAT SUCCESS
Size: 60 Count (Pack of 1)
Finally my 3 months of sinus congestion and cough are going away. My ears are also draining slowly too. This + oil pulling is helping with tooth sensitivity. Get this! I have struggled with sinus issues my entire life with brief breaks from problems. I have had easily over 80 antibiotic prescriptions in my life for ear infections, 7 ear surgeries for a non-cancerous tumor, sinus infections, strep, etc. Last year the sinus problems began again and I was becoming dependent on antibiotics (5 infections in 3 months). After researching and concluding the bacterial infections were secondary to a fungal infection, my doctor and I decided to use a Nystatin both orally and powdered form in my netipot, and this cured the problem. However I was misdiagnosed with lyme this summer and was on antibiotics for a month. I also got strep throat, leading to another week of antibiotics. The sinus problems returned. I would have gone back to that doctor for more nystatin, however, I moved so that primary care, who was amazing and listened to me and trusted my science background, was no longer an option for me to visit. So I began researching ways to overcome ENT problems naturally and this probiotic came up as a good choice for sinus and teeth issues (I have also been having severe tooth sensitivity). And I am happy to say it is working. Additionally I have been putting the juice of kimchi up my nostrils and in my ears. The latter resulting in my ears draining onto my pillows for the first few nights. I do not recommend Nystatin or any other fungal killer for that matter. After using Nystatin, I starting developing other problems like random joint and muscle pains, and I believe that is because the fungus was moving out of my intestines into the blood stream to escape the Nystatin (it has low absorption into the blood). I don't even recommend natural fungal killers like oil of oregano, pau d'arcco, neem, etc. I had been using for months and my intestinal candida was not improving. I truly recommend probiotics because biological control is always superior to chemical control. There is less chance for resistance since the organisms evolved together over millenia. Also building up diversity in your microbiome is hugely important. Get a good low-histamine probiotic to help with intestinal candida overgrowth and a good oral probiotic. If you think you have systemic candida, I recommend the book Killing Candida Sweetly. I have found it helpful. I have been attempting to follow the protocols, but even with my moderate adherence, it is working.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2017
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Verified Purchase
betsallonu
Cuba, US
★★★★★ 4
This stuff works
Size: 60 Count (Pack of 1)
This stuff works. I'm 51 years old and about 2 years ago I started noticing stains close to the gum line on my otherwise pearly smile and also thicker plaque. I asked the dentist what to do as I'm ridiculous about brushing & flossing already. She said I should think about getting a water flosser so I did and use it 2x a day. I've gone through 3 of them in 2 yrs time as they don't seem to last long. Anyhow at my next check up my dentist commented on how well my teeth were doing and I told her I had taken her advice and water flossing. I mentioned to her that I had read a study that said the amount of plaque in your mouth is directly correlated to the amount of plaque in your heart so I was determined not to have plaque. I got a staph infection in my nose after a cruise and had awful garbage in my nose and running into my throat so I tried this stuff to heal myself. Wouldn't you know the fuzzy sweaters/plaque on my teeth lessened over time using these tablets and I no longer need to use the water flosser. I think I have a chronic Candida problem and have tried everything under the sun to get rid of it and I think this stuff corrects the digestive issues which lead to plaque and sinus problems. I'm about to order my second bottle because my teeth have no stains and actually look better than with the water flosser. Also I can easily pack the tablets for a trip and couldnt do that with the bulky water flosser. As a side note the dark circles and bags are better under my eyes so I think these tablets are healing everything related to the candida, plaque on teeth and sinus pouches. I haven't added any other vitamins or herbs to my daily regimen except these. Would have given 5 stars if a full 2 months supply (60) was in the bottle, I hate when they short you just so you have to reorder early.
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Reviewed in the United States on October 31, 2019
Z
Verified Purchase
ZOMGPWN❗
Waukegan, US
★★★★★ 5
Great oral probiotic!
Size: 30 Count (Pack of 1)
Great oral probiotic! Tastes very good and has the right strains for oral health. Brushing, flossing and scraping are all key... and adding in a good oral probiotic is like the icing on the cake. Not too expensive either. If you are looking for a product like this, I can highly recommend NatureWise.
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Reviewed in the United States on December 8, 2025
K
Verified Purchase
KJ
Lake Worth, US
★★★★★ 3
Didn't Hurt, Didn't Help Much Either.
Size: 60 Count (Pack of 1)
Recently I was looking for an oral probiotic to help with sinus, gums and tartar for both myself and some pets. As a result, I purchased both this product and Great Oral Health's probiotics. Even though this product did have some positive effect as regards sinus pressure, it took two tables three times a day to work. Also, I noticed that an earthy, clay-like smell to breath in both myself and my pets as a result of using them. It didn't cause any harm, only that it was slightly disconcerting to smell like dirt. The product from Great Oral Health didn't take as long to produce results, and there was a visible reduction in tartar. Also, no odor. All in all, nothing majorly wrong with the product, except that it doesn't have results noticeable enough to warrant buying again.
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Reviewed in the United States on July 19, 2018
J
Verified Purchase
Jazzmanndan
Port Orchard, US
★★★★★ 5
Same probiotic strains, but a subtle formulation update
Size: 60 Count (Pack of 1)
I’ve used NatureWise Oral Health Probiotics (WiseBiotics) for a while and recently noticed a clear difference between the older and newer version — especially in taste and texture. After comparing the labels side-by-side, there has been a formulation change. The probiotic strains are still the same (including BLIS K12 and M18), but the newer version now lists Organic Inulin (90 mg) as an active ingredient instead of just a minor “other ingredient.” This seems to explain the changes I noticed: • The tablets feel more powdery/chalky • The taste is slightly different (a bit less crisp mint, slightly sweeter/fiber-like) • The dissolve/chew experience is not quite the same as before Inulin is a prebiotic fiber, so this change may actually help feed the probiotics — which is a positive. But it definitely changes the user experience. For me, it’s not necessarily a dealbreaker, but it’s noticeable enough that others should be aware, especially if you’re sensitive to texture or ingredients like inulin. Bottom line: Same probiotic strains, but a subtle formulation update that affects taste and texture. Still a good product — just not identical to the previous version. Hope this helps someone else who thought they were imagining things 🙂
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Reviewed in the United States on April 8, 2026

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