CSF High-Performance Heat Exchanger w/ Rock Guard (S58) - G8x M2, M3, M4

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 117 different applications ranging from high performance all-aluminium direct-fit replacement radiators, to complete custom applications for race cars, power sports, off-road, marine, and industrial uses.
$1,299.00

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 M2/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.



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 M2/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
  • 2 Series / G87 M2 (2022+) / M2
  • 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

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