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In Stock - Available from Supplier Dispatch between 20 September - 27 September.

Improve the cooling capacity for your 2015-2020 BMW M2, M3 or M4 with the Mishimoto S55 Performance Heat Exchanger. Air-to-water intercooling is a means of more efficient heat transfer from the charged air, but it now requires an additional heat exchanger mounted to the front of the vehicle in order to dissipate the transferred heat. The S55 powering the F8X generation of M’s packs quite a punch thanks to the A2W system. While the BMW engineers laid the foundation for dissipating heat from the intercooling system, we still saw some room to improve on their design.

We started by eliminating any bits of plastic and promptly replaced the end tanks, including the inlet and outlet ports, with durable aluminium. We kept the dual-pass flow through the core for maximum cooling properties while expanding the core into the available space. Our new design features a 42mm thick core while extending the height by 150 mm, totalling in a 60% increase in core volume and a 180% increase in fin surface area. The end result of our improvements is a 6°C drop in global intercooling temperatures over the stock unit.

Size isn’t the only thing that matters with this heat exchanger. Since the heat exchanger sits front and center in the M3 and M4’s cooling stack, it’s susceptible to damage from road debris. To keep your air-to-water system safe, our heat exchanger comes equipped with an optional steel mesh stone guard for an added layer of protection for the fins. We also incorporated a variable fin pitch for the lower 12 rows on the core in order to facilitate cooling to DCT-equipped M’s. Finally, our 2015-2020 BMW F8X M2/M3/M4 S55 Performance Heat Exchanger includes the Mishimoto Lifetime Warranty for a worry-free install.

KEY FEATURES

  • Direct fit for the 2015-2020 BMW M3, M4, and M2 Competition
  • 6°C drop in global intercooler coolant temperatures over stock
  • 60% increase in core volume
  • Includes durable stainless-steel stone guard for maximum protection against road debris
  • Increases intercooler coolant capacity by 2.3 liters
  • Full aluminium, TIG-welded construction
  • Full aluminium, TIG-welded construction
  • Dual-pass design for maximum cooling
  • Variable fin-pitch design for improved airflow to DCT cooler
  • Patent D940,013
  • Mishimoto Lifetime Warranty

ADDITIONAL INFORMATION:

Brand

PREPREG is a common term for a reinforcing fabric such carbon which has been pre-impregnated with a resin system. This resin system (typically epoxy) already includes the proper curing agent. As a result, the prepreg is ready to be laid into the mold without the addition of any more resin. In order for the laminate to cure, an autoclave production process is used, a combination of high pressure and heat.

  • Maximum strength and performance characterictics. In a hand layup production process, it is difficult to achieve 50% fabric and 50% resin content.  Typical hand laminates, even when vacuum bagged, end up with a significant amount of excess resin. Excess resin increases brittleness and reduces overall strength properties. On the other hand, most prepregs contain around 35% resin. This is ideal for maximum cured properties and generally impossible to achieve in normal hand lamination.
  • Uniformity and repeatability. The prepreg is of uniform thickness and each part coming out of the mold may theoretically be the same. Vacuum bagging technology may have some errors in processing, but prepreg ensures production consistency.
  • Reduce curing time. After the thermal curing cycle, no need to wait for the standard 48 hours can be fully cured.
  • Aesthetics. Although prepreg processing still requires mold preparation and demoulding, prepreg processing eliminates air bubbles, makes it easier to obtain a smooth, glossy surface as well as eliminates any seaming lines.

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We offer free tracked shipping on all orders within mainland EU. Orders to remote areas such as Malta, Cyprus, and Iceland may incur a surcharge. Worldwide shipping is also available—please contact us for a quote.

Most orders dispatch within one business day (Monday to Friday). EU delivery takes 3–5 working days from dispatch, and tracking details will be provided via email once your order has shipped.

Please note that import taxes may apply outside the EU, and these are the responsibility of the buyer. Some items may ship directly from our suppliers and may have varying delivery times. If an item is out of stock, we will contact you to discuss the available options.

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RETURNS

Changed your mind? You can return unused, uninstalled items in original packaging within 30 days of delivery. Return shipping is the customer’s responsibility unless the item is faulty.

Custom, used, or built-to-order items are non-returnable.

Once we receive and inspect your return, refunds are typically processed within 10 business days.

If your item is damaged or incorrect, contact us within 48 hours with photos and order details.

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WARRANTY

All VA and VA Motorsports products come with a 1-year limited warranty covering manufacturing defects and fitment issues. For third-party items, warranty terms vary by brand—please check the product listing or contact us for details.

This warranty does not cover wear and tear, incorrect installation, cosmetic damage, labor, or third-party costs.

To start a claim, email us with your order number, issue description, and photos. If the claim is approved, we’ll offer a replacement, store credit, or a refund.

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FREQUENTLY ASKED QUESTIONS (Faq)

Yes, we do ship worldwide. However, we recommend contacting us before placing your order, as the price only covers the product and does not include shipping costs

Each product listing includes detailed compatibility information. Please review it carefully to ensure the part fits your specific vehicle model and year. If you’re unsure, feel free to contact us with your vehicle details, and we’ll be happy to assist you.

Yes, we do provide this service in our workshop. Our skilled technicians can professionally install your body styling and performance parts to ensure a perfect fit and optimal performance. Please contact us to schedule an appointment or for more information.

Yes, customers within mainland EU can enjoy free shipping on all orders. However, in rare cases, customers from non-EU or remote areas may be contacted about an additional shipping fee. For further questions, feel free to contact us.

Shipping times vary based on your location and the product ordered.

Take note, that in-stock products will be shipped the next working day. Otherwise, your order will be dispatched as stated on its product information.

For customers within the EU, delivery typically takes 3-5 working days from the dispatch date.

For international customers, orders are generally delivered within 5-10 working days from the dispatch date.

We accept returns on unused and uninstalled items within 14 days of purchase. The product must be in its original packaging and condition. Shipping fees are non-refundable, and return shipping costs are the buyer's responsibility.

Mishimoto BMW S55 PERFORMANCE HEAT EXCHANGER F8X M2C M3 M4
Mishimoto BMW S55 PERFORMANCE HEAT EXCHANGER F8X M2C M3 M4