Mishimoto Performance Auxiliary Radiators for BMW G80 M3

G80

$579.13

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Key Features

Fits BMW G80 M3 2021 and newer
Upgraded auxiliary radiators for added cooling capacity
Good choice for tuned or track-driven cars
Helps manage heat during repeated hard pulls
Best paired with proper coolant bleeding procedure
Check ducting and shroud alignment during installation

Product Details

Category: Radiators
ASIN: B0CD8X6S3J

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Mishimoto Performance Auxiliary Radiators for BMW G80 M3 — Overview

These are upgraded auxiliary radiators from Mishimoto for the G80 M3 cooling system. On the G8X cars, the aux rads matter once you start leaning on the car with repeated pulls, track sessions, or higher ambient temps. If your stock setup heat soaks faster than you'd like, this is the kind of hardware upgrade that actually makes sense before you start chasing bigger power.

I’d pick these over stock replacements if the car sees hard street driving, track days, or future tuning plans where cooling headroom matters. If your G80 is mostly a commuter and never gets pushed, OEM-style replacements are probably the more sensible move. As with any radiator job on a modern BMW, plan on careful bleeding afterward and make sure fitment around ducts and shrouds is sorted during install.