Description
The Mishimoto Performance Heat Exchanger, MMHE-F80-15, is a purpose-built cooling upgrade engineered specifically for the S55-powered F8X generation of BMW M cars. Unlike the factory unit, this heat exchanger eliminates plastic end tanks and ports in favor of full aluminum, TIG-welded construction, and it grows the core into the available space with a 42mm thick design that extends core height by 150mm for a 60-percent increase in core volume.
Because air-to-water intercooling relies on a front-mounted heat exchanger to reject heat picked up by the charge air, the size and design of that exchanger directly affects how consistently your S55 engine can hold cooler intake temperatures under sustained load. Mishimoto kept the proven dual-pass flow through the core for maximum cooling while expanding external fin surface area by 180 percent, and testing showed up to a 10°F drop in global intercooler coolant temperatures compared to the stock heat exchanger. A variable fin-pitch design across the lower 12 rows of the core also improves airflow to the DCT cooler on dual-clutch-equipped M cars, and the unit adds 0.6 gallons of intercooler coolant capacity to the system.
Vehicle Applications
This Mishimoto Performance Heat Exchanger is a direct fit for the 2015-2018 BMW M3, the 2015-2020 BMW M4 Coupe and Convertible, the 2016 BMW M4 GTS, the 2019-2020 BMW M4 CS, and the 2019-2020 BMW M2 Competition. It is designed around the S55 engine code and fits the F80, F82, F83, and F87 chassis codes that these M models share.
Features
- Direct fit for the 2015-2020 BMW M3, M4, and M2 Competition
- Up to a 10°F drop in global intercooler coolant temperatures over stock
- 60-percent increase in core volume
- 180-percent 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 the DCT cooler
- Includes durable stainless-steel stone guard for protection against road debris
- Patent D940,013
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMHE-F80-15
- Product Type: Cooling
- Material: Aluminum
- Core Thickness: 42mm
- Core Height Increase: 150mm
- Fluid Capacity: 0.6 gallons
- Engine Code: S55
- Chassis Codes: F80, F82, F83, F87
- CARB EO Number: D-759-13
- Includes: Performance Heat Exchanger, Stone Guard, Magnetic Drain Plug, CARB EO Sticker, Mounting Hardware, Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles does the Mishimoto MMHE-F80-15 Performance Heat Exchanger fit?
It is a direct fit for the 2015-2018 BMW M3, the 2015-2020 BMW M4 Coupe and Convertible, the 2016 BMW M4 GTS, the 2019-2020 BMW M4 CS, and the 2019-2020 BMW M2 Competition, all built on the F80, F82, F83, or F87 chassis with the S55 engine.
What material is the heat exchanger made from?
It is constructed from aluminum with full TIG-welded construction, replacing the plastic end tanks and ports found on the factory unit.
How much cooling improvement does this heat exchanger offer over stock?
Mishimoto states this design delivers up to a 10°F drop in global intercooler coolant temperatures over the stock heat exchanger, along with a 60-percent increase in core volume and a 180-percent increase in external fin surface area.
Does the heat exchanger include any protection from road debris?
Yes, it comes equipped with a durable stainless-steel stone guard to protect the core and fins from road debris.
What is included with the Mishimoto Performance Heat Exchanger?
The kit includes the Performance Heat Exchanger, a stone guard, a magnetic drain plug, a CARB EO sticker, mounting hardware, and the Mishimoto Lifetime Warranty.
Does this heat exchanger increase coolant capacity?
Yes, it increases intercooler coolant capacity by 0.6 gallons compared to the stock system.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.














