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Mishimoto MMHE-G80-21AT Performance Heat Exchanger for BMW Radiator - G8X M3/M4 2021+

(2021-2027 BMW M3; 2021-2027 BMW M4; 2023-2027 BMW M2)

Part of: Mishimoto Performance Heat Exchanger

Other options in this family: Mishimoto MMHE-Q50-16 Mishimoto MMHE-F80-15 Mishimoto MMHE-Z-23 Mishimoto MMHE-SUP-20 Mishimoto MMHE-G80-21MT

Manufacturer

Picture for manufacturer Mishimoto

Part Number

MMHE-G80-21AT
6 reviews
Sale Price

$752.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Mishimoto Performance Heat Exchanger is engineered to maximize cooling efficiency for the 2021+ BMW G8X M3 and M4 equipped with automatic transmissions. This upgrade replaces the restrictive factory heat exchanger to provide significantly improved heat dissipation for the vehicle's charge air cooling system, helping maintain consistent performance during spirited driving and track use.

Key Features:

  • Direct bolt-on replacement for OEM heat exchanger—no modifications required
  • Increased core volume and optimized fin design for superior heat transfer
  • Precision TIG-welded aluminum construction for maximum durability
  • Reduces intercooler fluid temperatures to maintain power output and prevent heat soak
  • Designed specifically for G8X chassis M3/M4 with automatic transmission
  • Backed by Mishimoto Lifetime Warranty

This performance heat exchanger is essential for enthusiasts looking to extract maximum performance from their G8X platform, whether on the street or track. By keeping charge air temperatures in check, this upgrade helps prevent power loss due to heat-related engine timing retardation and ensures more consistent performance lap after lap.

Products specifications

Fits

2021-2027 BMW M3; 2021-2027 BMW M4; 2023-2027 BMW M2

Prop 65

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

TechSpec Overall Height (in)

20.17

TechSpec Overall Length (in)

28.66

TechSpec Overall Width (ins)

2.78

TechSpec Core Length (in)

24.21

TechSpec Core Height (in)

19.52

TechSpec Fluid Capacity (gal)

0.51

TechSpec Core Thickness (in)

1.65

TechSpec Material

6061-Aluminum

TechSpec Applications

BMW M2 I6 3.0L Twin-Turbo 2023--BMW M3 I6 3.0L Twin-Turbo 2021+--BMW M3 Competition I6 3.0L Twin-Turbo 2021+--BMW M4 I6 3.0L Twin-Turbo 2021+--BMW M4 Competition I6 3.0L Twin-Turbo 2021+

TechSpec Engine Codes

S58B30

TechSpec Chassis Codes

G80--G82--G83--G87

TechSpec Note

Requires removal of passenger side stock rock guard tab. Please refer to step 11 of the installation guide for more details

TechSpec Includes

(1) Performance Aluminum Heat Exchanger--(1) Upper Rock Guard--(1) Lower Rock Guard (MT Only)--(1) Hardware Pack--Mishimoto Lifetime Warranty

OptionLabel

Automatic Transmission

Install Difficulty

3

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Fast and flawless. Excellent communication on the status of my order! Would definitely buy from THMotorsports again!

First time buying from Autoplicity,Very pleasant purchase experience, no problem whatsoever with shipping, all around good deal for what I was looking for - the Pingel High Flow 6111-AH gas petcock works great Thanks!

Great Web Page, Good Prices, great inventory!

Good pricing and reasonably fast delivery. The parts came in multiple packages over several days, which I wasn't aware of, so initially I feared things hadn't been delivered...but after a couple of days, everything arrived and was as expected. Overall, will shop here again.

Hello this is my first .

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