(Backordered) Mishimoto 2015-2020 BMW F8X M3/M4 Performance Heat Exchanger

Heat Exchanger Heat Exchanger
$675.00 $540.95

  • Direct fit for the 2015–2020 BMW M3, M4, and M2 Competition
  • 10°F drop in global intercooler coolant temperatures over stock
  • 60% increase in core volume
  • 180% increase in external fin surface area
  • Increases intercooler coolant capacity by 0.6 gallons
  • Full aluminum, TIG-welded construction
  • Dual-pass design for maximum cooling
  • Variable fin-pitch design for improved airflow to DCT cooler
  • Includes optional stone guard for maximum protection against road debris
  • Mishimoto Lifetime Warranty

Improve the cooling capacity for your 2015–2020 BMW M3 or M4 with the Mishimoto 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 aluminum. 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, totaling in a 60% increase in core volume and a 180% increase in fin surface area. The end result of our improvements is a 10°F 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 M3/M4 Performance Heat Exchanger includes the Mishimoto Lifetime Warranty for a worry-free install.

Purchase Includes

(1) Performance Heat Exchanger 
(1) Stone Guard
(1) Magnetic Drain Plug 
Mounting Hardware 
Mishimoto Lifetime Warranty

Coolant Capacity

0.6 gal

Dual Pass


Domestic Shipping Policy

All domestic orders will be shipped to the verified billing address associated with the customer’s credit card. In the event that the products need to be shipped to another address, Kies Motorsports will verify the transaction with the customer by requesting a screenshot of our transaction on the customers online banking. Similar to how PayPal verifies orders, Kies Motorsports has implemented an authorization program that will display a unique code on the credit card transaction next to where the “Kiesmotorsports” name appears.

International Customer Policy

To best serve International Customers, Kies Motorsports only accepts PayPal VERIFIED payments and PayPal VERIFIED addresses on international orders. For international shipping quotes, please email us at info@kiesmotorsports.com

2015–2018 BMW M3 Sedan
2015–2020 BMW M4 Coupe
2015–2020 BMW M4 Convertible
2016 BMW M4 GTS Coupe 
2019–2020 BMW M4 CS Coupe
2019–2020 BMW M2 Competition
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(Backordered) Mishimoto 2015-2020 BMW F8X M3/M4 Performance Heat Exchanger
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