SKU: 64162252857

CSF High-Performance Heat Exchanger w/ Rock Guard (S58) - G8x M3, M4

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Description

CSF High-Performance Heat Exchanger w/ Rock Guard (S58) - G8x M3, M4The Racing & High Performance Division of CSF Inc. strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. CSF manufacturers a wide variety of sophisticated cooling systems with more than 250 different applications, ranging from high performance all aluminum direct fit radiators, intercoolers, and oil coolers, to complete custom manufacturing for racecars, power sports, off road, marine, and industrial

The Racing & High Performance Division of CSF Inc. strives to build and engineer the most advanced, efficient, and reliable cooling systems in the world. CSF manufacturers a wide variety of sophisticated cooling systems with more than 250 different applications, ranging from high performance all-aluminum direct-fit radiators, intercoolers, and oil coolers, to complete custom manufacturing for racecars, power sports, off-road, marine, and industrial use. All CSF cooling systems are designed and engineered to maintain optimal engine temperatures, even under the most extreme driving conditions.

With over 50 years of experience and over 40 million cooling systems sold globally, CSF has earned the industry reputation of being “THE COOLING EXPERTS”.

  • Over 50 Years in Business
  • ISO 9001 Certified – True Manufacturer
  • Over 150,000 Radiators and Condensers in Stock over North America
  • Over 650,000 Units Sold Annually, with Manufacturing and Warehousing Capacity for 1 Million Units

CSF prides itself on using the most advanced technologies, machines, and experienced personnel to design, develop, and manufacture the world’s best cooling systems. With three privately owned manufacturing facilities, and a global cooling network formed over the past 75 years, CSF houses the industry’s best machines and brightest minds. Our engineering staff designs many of the machines in-house, giving CSF the innovative edge when introducing new technologies to the industry.

PRODUCT INFORMATION

THE ULTIMATE COOLING SOLUTION FOR THE BMW S58 ENGINE


The S58 motor is a tuners dream capable of incredible power on stock internals and bolt on modifications. However, power always comes at the cost of producing more heat. CSF offers a variety of cooling systems to keep your temperatures in check. The Cooling Experts at CSF design and manufacture the ultimate cooling solutions for BMW.

BMW G8X M3/M4 HIGH-PERFORMANCE HEAT EXCHANGER


Arguably one of the hottest German performance vehicles of the decade, the G8X M3/M4 has quickly become a favorite among enthusiasts and race teams alike. Like many BMWs, the S58 motor has some heat issues under heavy driving conditions when modified. CSF has been working tirelessly for the last year on a complete suite of industry leading cooling products for the G8X platform. Now, with over 9 months of development and testing, CSF is pleased to announce the release of its highly anticipated high-performance G8X M3/M4 Heat Exchanger (CSF #8215) for both 6-speed manual (6MT) & ZF8 automatic transmissions.

CSF has worked closely with race teams throughout North America such as Studio RSR, Art of Attack, and Velocity Performance as well as premier dealer Precision Sport Industries throughout the prototyping and development process. The feedback gathered from daily driving, track days, and competitive drag racing events has lead to the best possible iteration of the Front Mount Heat Exchanger.

OEM COOLING COMES UP SHORT

When the new M3/M4 was released in late 2020, it didn’t take long to see them hit the track. CSF’s Engineers and Motorsports department was in attendance for some of the first track days that local R&D Partners & Premier Dealers Studio RSR and Art of Attack took their new G8Xs to.

While in stock form, the G8X’s factory cooling system does a decent job keeping up with the cooling demands. While this was true of the car in factory spec, those results changed when the cars were modified and started pushing more power. CSF quickly observed issues with heat soak in the charge-air system. This overheating of the intercooling system causes a spike in Intake Air Temperatures (IATs). Subsequently, the ECU started pulling timing which decreases power output. In extreme cases this can also send the car into limp mode. This problem became even more prevalent as testing continued into the hot summer months.

HOW CHARGE-AIR COOLING SYSTEM WORKS

CSF’s industry-leading reputation and deep knowledge of high-performance BMW cooling systems allowed its engineers to immediately identify the cooling weak spots on the S58 engine. The engine is very similar to the B58 in the A90 Supra and G-Series BMW 40i models. Both feature a liquid-to-air charge cooler manifold paired with a front mount heat exchanger (water radiator). The Heat Exchanger cools the fluid cycling through the charge cooler, dissipating heat from the system.
Please see photos for further detail on these points.
Because the charge cooler is built into the manifold, it’s extremely expensive to replace with a high-performance unit. While CSF has developed a high-performance billet charge-air manifold for the S58 Motor (CSF #8233), the heat exchanger is still the most cost effective way to bring down charge-air temps. The Front Mount Heat Exchanger is responsible for removing heat from the chair-air cooling system and is now recommend as a critical bolt-on upgrade.

DESIGN, DEVELOPMENT AND TESTING

With well over 100 track hours worth of testing and thousands of miles on the road, you can be assured that the CSF’s new High-Performance Front Mount Heat Exchanger has been thoroughly tested and vetted.

The CSF Heat Exchanger features a 2-Row (vs OEM single row) Core that is 42mm thick with CSF’s Exclusive B-Tube Technology. Increasing the size of the core and end tanks adds to the overall volume of the system which helps absorb more heat. The more efficient core not only helps dissipate more heat from the system, but also provides better airflow into the radiator that sits behind the heat exchanger. For vehicles equipped with the ZF8 Automatic Transmission, the heat exchanger core specifications were design concurrently with CSF’s new Race-Spec Dual Core Transmission Oil Cooler (#CSF8221).

The two included Black Rock Guards offer full protection for the heat exchanger (above and below the crash bar), especially when paired with aftermarket “open face” race style grilles. These grilles have become quite popular for performance and aesthetics, and keeping your heat exchanger safe from debris is very important.

FITMENT

The CSF Front Mount Heat Exchanger is a direct replacement for BMW part number 17118095283. Suitable for G8x M3/M4 models with 6MT or ZF8 Auto (incl. Competition).

FEATURES

  • Significantly reduces intake air temperatures (IATs) for maximum performance (with faster heat soak recovery).
  • Improves air flow to the rest of the cooling system for lower engine coolant and engine oil temperatures.
  • 2-row, 42mm ultra-high-performance core.
  • 6.5mm tall multi-louvered fin with CSF’s Exclusive B-Tube Technology.
  • CNC machined mounting brackets and OEM style “Quick Connect” inlet/outlet.
  • 100% all-aluminum TIG-welded construction.
  • Includes black rock guards (upper and lower) & transmission cooler mounting kit.
  • Upper and lower rock guards for manual transmission.
  • Upper rock guard and transmission cooler mounting kit for ZF8 auto.
  • True plug-and-play “drop-in fit” installation - requires absolutely no modifications.
  • 2-year limited warranty.
  • 1-hour “mirror finish” hand polish.
  • Tested and proven by CSF’s global network of R&D partners, including leading time attack teams, tuners, and turbo kit manufacturers.

Models
  • 3 Series / G80 / G81 M3 (2021+) / M3
  • 3 Series / G80 / G81 M3 (2021+) / M3 Competition
  • 4 Series / G82 / G83 M4 (2021+) / M4
  • 4 Series / G82 / G83 M4 (2021+) / M4 Competition
  • 4 Series / G82 / G83 M4 (2021+) / M4 CSL
                          Shipping Notes
                          • Free Standard Shipping on $100+ Orders to the USA.
                          • Except Preorder products are shipped in 48 hours.
                          • Delivery to the USA:
                          1. 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
                          SKU: 64162252857

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                          4.7 ★★★★★
                          Based on 21 reviews
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                          Product Reviews
                          W
                          Verified Purchase
                          wendy weather
                          Pawtucket, US
                          ★★★★★ 5
                          These are must haves for dog owners!
                          Size: Large, Color: Pink
                          These things have saved my sanity! I have two dogs and we use these at least two to three times per week. They are high quality and last thru heavy chewers. We spread peanut butter inside for a quick treat when clipping nails, or make our own mix of Greek yogurt, dry oatmeal, diced carrots, a little pumpkin, and a bit of diced apple, mix it up and freeze it in the Pupsicle mold. That way we have a bunch ready to go and aren’t buying expensive refills. The colors are adorable, the pupsicle is durable, and the dogs LOVE them. FYI - it’s a good idea to use a little olive or avalado oil on the threads when closing them up - it makes life so much easier when screwing then on and off. We throw ours into the dishwasher.
                          WAS THIS REVIEW HELPFUL?YesReportShare
                          Reviewed in the United States on June 6, 2026
                          P
                          Verified Purchase
                          professional grade
                          Lowell, US
                          ★★★★★ 5
                          Like unto the Holy Grail of food toys. [I recommend buying the separate treat mold, too.]
                          Size: Large, Color: Green
                          So far, I have no complaints. I can see that this toy might not work well for some combinations of dogs and people, but for my two current dogs (blue heeler and small terrier), this thing, plus the treat mold, is GREAT! I love that the dogs get it more or less fully emptied, and it is washable. I love that I can pre-prepare a whole bunch of frozen fillings by using the treat mold (sold separately). Yes, I agree that this is a very expensive item, especially if you buy the treat mold along with the toy. I bought two toys at a very reduced price on Prime day, also bought the treat mold at full price, and consider the combined purchase a great value at this cost. The current price (for the toy) is comparable to the cost of an extra-large Toppl, and I've seen it at a price similar to the current cost of a large Toppl. I checked the current price of the XXL "extreme" Kong I needed to use for one dog, and the current price on a different web site is almost the same as the Woof Pupsicle. To answer questions and issues I've seen mentioned... * My terrier weighs 16 pounds and uses the large toy with no problem. Possibly it is minimally less thoroughly cleaned out, but I'm not positive about that. My only warning would be that you ought to keep track of calories and/or what you put in it because you could potentially give a small dog way too many empty calories from "junk food." * The toy is still usable without the treat mold. Just fill up the solid half of the toy and stick it in the freezer overnight, same as you would do with a Kong, except it takes up less space. * Do introduce it properly, by initially giving it with NON-frozen and sticky food in it. An even more slow, careful, step-wise introduction may be necessary if your dog is a destructo-dog. * The terrier takes about 20 minutes to empty it of frozen canned dog food. That's non-trivial, and I'm not sure why people are complaining. The heeler takes less time (maybe 15 minutes?), but it's still an amount of time that is helpful for me, and this licking activity seems to be especially calming for her (as compared to using the food puzzle toys with kibble). * It initially was extremely difficult to open and close the thing. I was best able to do it with a "light" touch, not pulling and making sure not to press the two surfaces together. After not very long, it became much easier. I didn't need to use oil. If you have trouble getting it closed, it became a lot easier after the solid part was frozen (while the vented part stayed at room temperature). * I agree with others that a larger version might be nice, but a larger version might make dogs more likely to destroy the toy in place of emptying it by focused licking. * I'm not sure that any of these toys are truly indestructible. People are mentioning Kongs. Well, my Kongs have required periodic replacement. They have tooth marks and eventually get "modified" to where pieces might get torn off and consumed. For one dog, I had to upgrade to the XXL-size Extreme (black) version, and she also put tooth marks in that. I own a fortune's worth of Kongs, Toppls, and a couple similar food toys, and they all have their issues. They have holes in them that allow liquid to immediately come out (before freezing occurs). They are bulky and use up a lot of space in the freezer, and the unusual shapes make them non-stackable. For me, Kong toys are time-consuming to fill and difficult to clean. My dogs couldn't get the very end cleaned out without throwing the Kong around (making a big mess), and even then it wasn't fully clean. Some did end up with mold in that part of them. [It looks like new inventions, like plugs (or something like that), may solve some of the problems; I didn't have those.] I mention the other toys only to say that this unique brilliant toy has seeming solved all those problems, and my dogs truly LOVE this toy as well. Be assured, I will update this review if anything changes.
                          WAS THIS REVIEW HELPFUL?YesReportShare
                          Reviewed in the United States on July 24, 2023
                          M
                          Verified Purchase
                          Matthew Paul
                          Fort Morgan, US
                          ★★★★★ 4
                          Perfect for Our Nervous Rescue Dog
                          Size: Large, Color: Green
                          First Impressions I bought the Pupsicle for our new rescue dog who was very nervous whenever we had to leave the house. Right out of the box it felt sturdy and well-made, and I liked that it wasn’t just another cheap chew toy. ⸻ Setup & Ease of Use I went with the premade treat inserts to start, which made it super simple — just pop one in and hand it over. It’s also dishwasher-safe, which is a huge win for me since I don’t want to deal with scrubbing peanut butter out of toys. ⸻ Performance in Real Life She loves it. The Pupsicle has kept her occupied and calm, which has really helped her acclimate to her new home. Instead of pacing or whining when we leave, she settles down with this toy and stays busy. ⸻ Pros & Cons Pros: • Helps reduce anxiety for nervous dogs • Very durable and solid • Easy to clean (dishwasher safe) • Premade inserts make it effortless Cons: • On the heavier side, so probably best for medium+ dogs • Inserts are convenient but add a little extra cost ⸻ Who It’s For Perfect for new dog owners, rescues, or anyone with a dog who needs a healthy distraction when left alone. ⸻ Final Verdict The Pupsicle has made a noticeable difference for our rescue pup. It’s durable, easy to use, and has genuinely helped her feel more at ease in her new environment. Highly recommend.
                          WAS THIS REVIEW HELPFUL?YesReportShare
                          Reviewed in the United States on August 24, 2025
                          T
                          Verified Purchase
                          taximom
                          Houston, US
                          ★★★★★ 3
                          Dogs love it, hard to open and close
                          Size: Large, Color: Pink, Size: Large, Color: Pink
                          My dogs love this toy. It keeps them entertained a long time. Great calming toy for when you leave the house. Only issues is it is very hard to open and close. One of mine I had three people try to open and after fighting with it for about an hour I finally got it opened. Got 2, one a blue and pink one for each of my dogs. The blue is easier than the pink but still hard to do. Just not as bad. Can't close the pink all the way because it is so hard to close. The dog that uses it has trouble getting the stuff out of it. But it doesn't stop her from trying for hours to do so. Does get some teeth marks on it as well if they are aggressive chewer. Tried multiple eatable lubricating substances to try to make it easier but so far nothing fully worked. Aloe Vera has worked the best so far, but not great.
                          WAS THIS REVIEW HELPFUL?YesReportShare
                          Reviewed in the United States on February 17, 2026
                          C
                          Verified Purchase
                          CS Niles
                          Port Orchard, US
                          ★★★★★ 3
                          Good in theory, but didn’t fully deliver
                          Size: Large, Color: Green, Size: Large, Color: Green
                          My dog falls right on the size cutoff between the small and large Pupsicle. I initially ordered the large since he’s a strong chewer, but he had trouble getting everything out, so I ended up trying the small as well. There are definitely some positives. I think the design is better than a Kong. It stays upright, which makes it less messy. I also really like the mold for making the inserts, instead of having to fill the toy itself and freeze it. That said, there are two major design issues that impacted my experience. First, the all-rubber construction creates a lot of friction when screwing the bottom into the base, especially after repeated use. It gradually became harder to open, to the point where I was using coconut or avocado oil to try to loosen the threads. At one point I even needed a wrench and pliers just to get a better grip. Second, while it’s marketed as dishwasher safe (which I was excited about for cleaning), it seems to dry out the rubber and makes the threading issue worse over time. Unfortunately, mine is now permanently stuck shut and no longer usable. Overall, I like the concept, but the durability and usability issues make this a 3-star product for me. I’d recommend it with caution, especially if you plan to wash it frequently.
                          WAS THIS REVIEW HELPFUL?YesReportShare
                          Reviewed in the United States on April 23, 2026

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