Mishimoto MMHE-G80-21MT Performance Air-to-Water Heat Exchanger Manual Transmission

The Mishimoto MMHE-G80-21MT is an advanced performance heat exchanger designed specifically for manual transmission 2021+ BMW G8X M3/M4 models equipped with the S58 twin-turbocharged engine. This air-to-water intercooler heat exchanger delivers superior charge air cooling performance under the most demanding driving conditions.

Superior Construction and Durability:

• All-aluminum construction eliminates factory plastic components for maximum durability
• TIG-welded aluminum end tanks and core ensure strength and longevity
• CNC-machined inlet and outlet ports provide leak-free operation
• Strutted tube design within the core resists bowing and flexing during aggressive cornering
• Includes upper and lower removable steel rock guards for protection against road debris

Enhanced Cooling Performance:

• 23% increase in core volume improves cooling capacity over stock
• 44% increase in external fin surface area for greater heat transfer efficiency
• Dual-pass flow configuration maximizes cooling effectiveness
• Louvered fin design optimizes airflow and thermal performance

What's Included:

• (1) Performance aluminum heat exchanger
• (1) Upper rock guard
• (1) Lower rock guard (manual transmission specific)
• (1) Complete hardware pack
• Installation guide
• Mishimoto Lifetime Warranty

This direct-fit heat exchanger integrates seamlessly with all factory components and requires medium installation difficulty. The manual transmission version includes an additional lower rock guard not found in the automatic transmission variant. Backed by Mishimoto's renowned Lifetime Warranty for complete peace of mind.