Mishimoto Performance Transmission Cooler - BMW G8X M2/M3/M4 (Automatic)

OVERVIEW

The ZF 8-speed automatic in the G8X builds significant transmission heat under hard driving, and heat is what shortens fluid and clutch-pack life. Mishimoto's direct-fit Performance Transmission Cooler replaces the factory unit with a 41% larger core and a dual-pass design that pulls more heat without choking airflow — keeping the auto cooler and more consistent on track without any modifications.

SPECS

• 41% increase in core volume over stock for superior cooling
• 17% increase in transmission fluid capacity
• Dual-pass design maximizes heat removal without restricting airflow
• 17-row core (vs. 14-row stock) with internal cooling fins
• Integrated steel stone guard protects the core from road debris
• Direct-fit — no modifications required
• Mishimoto Lifetime Warranty

PARTS INCLUDED

• 1x transmission cooler with hard lines
• Mishimoto Lifetime Warranty

TECH RESOURCES

• Fits the ZF 8-speed automatic only — does not fit the 6-speed manual M3/M4; verify your transmission before ordering
• Direct-fit — no cutting or modification required; professional installation recommended
• Rounds out your G8X cooling alongside our Performance Auxiliary Radiators and Performance Oil Cooler
• Installation instructions (PDF): Mishimoto MMTC-G80-21 Install Guide

PART NUMBER

• MMTC-G80-21

VEHICLE APPLICATIONS