Performance Heat Exchanger BMW M2, M3, M4 F8X
SKU: 86699151213

Performance Heat Exchanger BMW M2, M3, M4 F8X

Sale price$368.55 Regular price$409.50
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Performance Heat Exchanger BMW M2, M3, M4 F8XImprove the cooling capacity for your 20152020 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 Ms packs quite a punch thanks to the A2W system. While the BMW engineers laid the

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 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, totaling 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 M3/M4 Performance Heat Exchanger includes the Mishimoto Lifetime Warranty for a worry-free install.

  • 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
  • 180% increase in external fin surface area
  • Increases intercooler coolant capacity by 2.3 liters
  • Full aluminium, 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
  • Material: Aluminium
  • Rows: 1
  • Coolant Capacity: 2.3L
  • Dual Pass: True
  • Engine Codes: S55
  • Chassis Codes: F80, F82, F83, F87
  • (1) Performance Heat Exchanger 
  • (1) Stone Guard
  • (1) Magnetic Drain Plug 
  • Mounting Hardware 
  • Mishimoto Lifetime Warranty
  • 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
          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: 86699151213

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          4.4 ★★★★★
          Based on 2070 reviews
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          Steve in Florida
          Boise, US
          ★★★★★ 5
          Awesome chair definitely recommend
          Color: Blue, Color: Blue
          It was amazing the color was spot on and it was very very easy to put together and the size is amazing for my 11 year old daughter maybe not for an older person it doesn’t recline as much as it says so if you want a reclining chair maybe I don’t recommend this chair but the quality is amazing and the adjustment capability is incredible the noise level is at 0 it is an amazing chair we just got it so I don’t know so much about the dupability so if you want this chair for a child or a tween maybe even a teen easy to put together beautiful blue color this is the chair for you.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on March 21, 2026
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          Verified Purchase
          Rocky hardcore
          Charlottesville, US
          ★★★★★ 5
          Easy instructions, comfortable cushions
          Color: Pink
          I just put it together and I love it!!! It's so comfortable and it was easy to put together. You can rock it back and forth which helps your back. The seat is very wide and the cushion is thick. Pink is my favorite color, and this chair satisfies my pink obsession.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on May 16, 2026
          L
          Verified Purchase
          LA Living
          Houston, US
          ★★★★★ 5
          Wonderful chair
          Color: Dark Black
          I bought this office chair as a sewing tool, you might say. I felt that having an office chair on wheels would get me from the sewing machine to the ironing board and then to the cutting board and back to the sewing machine. I was having to get up and down to get around to all these places before and this saves me so much time and effort. I’m 71 so when the box came I was hesitant to try to bust into it and put it together but it went together so easily. It’s very comfortable and the lumbar support feels great on my low back. When I first sat down after the assembly process, the chair cushion tipped down in the front but after contacting the support team I was advised to tighten the tilt tension located under the chair and that fixed me right up! All and all, my chair is the perfect addition to my sewing area at a very affordable price. I couldn’t be happier!
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on December 31, 2024
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          Verified Purchase
          SP
          Charlottesville, US
          ★★★★★ 4
          Comfortable, affordable, and great for small spaces!
          Color: Light Purple, Color: Light Purple
          I had previously left a review of two stars, but have since deleted that review after I've owned the chair for a few weeks now. Initially, I stated the chair was uncomfortable and not cushioned at all. But this issue quickly resolved after sitting it for a longer time, it seems the cushion molds to you. So it may be uncomfortable the first few times sitting on it, but it eventually softens. The cushion is now soft yet sturdy. You don't sink in too much, but it's comfortable for sitting for long periods of time. I personally enjoy the mesh back as well, it supports my lower back and doesn't cause back pain. Normally I have to use a cushion of my own to support my lower back for most chairs, but this one actually supports me in a way that doesn't require an extra cushion - so that's really nice. The chair is fairly on the smaller end, which is perfect for low desks or tight spaces, which is exactly what I wanted. The height can be adjusted, but even at the highest setting, it is still fairly low. Keep that in mind - it may not be super comfortable for those over 6 ft. The arms flip up which makes storing it under a low desk very easy. The cushion is thick and very accurate to the picture. I love that it is lightweight and doesn't make much noise when rolling the chair. It also feels very sturdy. Some of the reviews say it feels flimsy, and I don't know if some are just assembling it incorrectly, because for me this thing is very strong and holds up quite nicely under my weight. Overall, this is exactly what I wanted for my personal living space. A chair that's not too bulky, but comfortable enough to sit in for long hours. It functions as advertised for this purpose. One final thing -- the color selection is gorgeous. I bought the light purple color and it fits my setup nicely! Color was accurate to the picture, and looks very cute and adorable in my space.
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on December 21, 2025
          C
          Verified Purchase
          Christine Franzone
          Omaha, US
          ★★★★★ 5
          Exteremly comfortable
          Color: Dark Black
          Reasonably priced, very comfortable l, easy assembly
          WAS THIS REVIEW HELPFUL?YesReportShare
          Reviewed in the United States on May 24, 2026

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