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  3. CSF 8258

CSF 8258 Performance Radiator

fits model: M3, M4, M2. make: Bmw. year: 2019–2021.

8258 Csf Performance Auxiliary Radiator For 2015-18 Bmw M3 / 15-20 M4 19-21 M2

( Brand: Csf ), ( Manufacturer Part Number: 8258 ), ( Part Type: Radiator )

Review CSF Performance Auxiliary Radiator For 18 Bmw 15-20 fits M3 M4 M2 2019–2021

The CSF (Cold Secrets Factory) 8258 is a high-performance aluminum radiator specifically designed for the cooling systems of select BMW models from 2015 to 2018 for the M3, 2015 to 2020 for the M4, and 2019 to 2021 for the M2. This radiator is engineered to provide superior cooling efficiency and durability for track day enthusiasts and performance-driven drivers.

Constructed from lightweight yet robust 6061-T6 aluminum, the 8258 radiator boasts a larger cooling capacity than the OEM unit. Its optimized core design, featuring a large number of thin, narrow tubes, ensures efficient cooling and quick heat dissipation. The radiator also utilizes thicker and wider tubes at the inlet and outlet for added strength and durability.

The CSF 8258 radiator is compatible with the BMW's cooling system layout, making for a straightforward installation process. It includes all necessary hardware for installation, including new upper and lower radiator hoses. The upper hose is a steel-reinforced silicone hose, while the lower hose is a reinforced rubber hose, both designed for excellent flexibility and resistance to wear and tear.

The radiator comes with a large, high-flow aluminum expansion tank, allowing for increased coolant capacity and better pressure management. This expansion tank also features a built-in coolant reservoir and a sight glass, making it easier to monitor coolant levels.

The CSF 8258 radiator is also designed with a strong, multi-core aluminum header tank. This header tank offers improved sealing and cooling efficiency, as well as a more OEM-like appearance. Additionally, it comes with a high-quality, billet aluminum radiator cap, ensuring a secure seal and pressure control.

This high-performance radiator is also equipped with an integrated bypass system, which utilizes a thermal valve to maintain proper coolant temperature and flow during cold starts. This feature helps prevent coolant starvation, which can lead to engine damage.

The CSF 8258 radiator is designed and manufactured in the USA, ensuring the highest standards of quality and craftsmanship. It is backed by a limited lifetime warranty, providing peace of mind and assurance against defects in materials and workmanship.

In summary, the CSF 8258 radiator is a high-performance, lightweight, and durable cooling solution for BMW M3, M4, and M2 models from 2015 to 2021. Its optimized core design, compatible hardware, and additional features make it an ideal choice for those seeking improved cooling efficiency and reliability.

The CSF 8258 Performance Radiator is a popular aftermarket cooling solution for the 2015-18 BMW M3, 2015-20 M4, and 2019-21 M2 models. This radiator is designed to provide improved cooling performance and better thermal management for high-performance applications. In this response, we will discuss the pros and cons of buying a CSF 8258 Performance Radiator for your BMW.

Pros:

1. Enhanced Cooling Capacity: The CSF 8258 radiator provides increased cooling capacity due to its larger size and optimized core design. This can help maintain engine temperatures during aggressive driving and track use.

2. Better Thermal Management: The CSF 8258 radiator features a high-density core, which improves the radiator's ability to dissipate heat. This can help reduce the engine's operating temperature, which can lead to improved engine longevity and performance.

3. Improved Aesthetics: The CSF 8258 radiator is designed with a sleek and modern look, which can enhance the visual appeal of your BMW.

4. OEM-Grade Materials: The CSF 8258 radiator is constructed using high-quality materials, such as aluminum and brass, ensuring durability and longevity.

5. Easy Installation: The CSF 8258 radiator is designed to be a direct-fit replacement for the OEM radiator, making installation relatively straightforward.

Cons:

1. Higher Cost: The CSF 8258 Performance Radiator is more expensive than the OEM radiator, which can be a significant investment for some enthusiasts.

2. Potential Clearance Issues: Depending on the specific BMW model and aftermarket modifications, there may be clearance issues with the larger size of the CSF 8258 radiator.

3. Increased Noise: Some customers have reported an increase in radiator fan noise, which can be a nuisance for some drivers.

4. Potential Fitment Issues: In some rare cases, there have been reports of fitment issues with certain BMW models, so it is essential to ensure compatibility before purchasing.

Conclusion:

The CSF 8258 Performance Radiator offers several benefits for BMW M3, M4, and M2 owners, including improved cooling capacity, better thermal management, and OEM-grade materials. However, it comes with a higher cost, potential clearance and fitment issues, and increased noise. Ultimately, the decision to purchase the CSF 8258 Performance Radiator depends on your individual needs, budget, and preferences. If you frequently drive aggressively or track your BMW, the benefits of the CSF 8258 radiator may outweigh the potential drawbacks. However, if you are on a tight budget or are not concerned with extreme performance, the stock radiator may be sufficient for your needs.

Recommendation:

If you are considering purchasing the CSF 8258 Performance Radiator for your BMW M3, M4, or M2, we recommend carefully evaluating your specific needs and budget. Consider the benefits and drawbacks outlined above, and ensure compatibility with your BMW model and any aftermarket modifications. If you determine that the CSF 8258 radiator is the right choice for you, we recommend purchasing it from a reputable supplier to ensure quality and compatibility.

Details:

Constructed with durable materials, it ensures reliable heat dissipation and sustained performance under demanding conditions. This auxiliary radiator is ideal for high-performance driving scenarios where maintaining consistent engine temperatures critical optimal power output and reliability. 12407 Larson Ave. Installation is straightforward for those familiar with BMW cooling systems, and the kit typically includes radiator itself along necessary mounting hardware.

Crafted specifically for model's from 2011 to 2025, this auxiliary radiator enhances the vehicles cooling capacity, helping maintain optimal engine temperatures during aggressive driving, track sessions, or heavy-duty applications. This component is engineered to support the vehicles cooling system, reducing heat soak and preventing overheating, which can lead improved engine efficiency longevity.

part #: 8258 price

  • $449.00

specifications radiatoranch:

  • for models: M3, M4, M2
  • for makes: Bmw
  • for years: 2019-2021
  • brand: Csf
  • mpn: 8258
  • part type: Radiator

shipping radiatoranch:

  • class: Standard
  • carrier: FedEx
  • type: Fixed
  • cost: $0.00
  • service: FedEx Ground / FedEx Home Delivery
  • transit: 4-10 Days

general radiatoranch:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Radiators

seller radiatoranch:

  • rating: 99.8%
  • # reviews: 2203
  • city: Whittier, California

returns radiatoranch:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days

offer radiatoranch:

  • sold: 0
  • started: April 17, 2026
  • availability: In Stock
  • quantity: 10
  • options: Ship-to-home

payments radiatoranch:

  • other
  • credit card: Visa
  • wallet: Paypal
for models: m3, m4, m2, for makes: bmw, for years: 2019-2021, part type: radiator,
category: auto parts > car truck parts accessories > engine cooling components > radiators, sku: 13159666521632731,

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