Mishimoto Performance Heat Exchanger for 2021-2026 BMW M2/M3/M4 G8X (MMHE-G80-21AT)

Fits 2021-2026 BMW M2, M3, and M4 models (G8X platform) including Base, Competition, xDrive, CS, and CSL trims.

The Mishimoto Performance Heat Exchanger for the 2021-2026 BMW G8X M2/M3/M4 is engineered to maintain low charge air temperatures during aggressive driving and high-heat conditions. Moving beyond the limitations of factory components, this unit features a full aluminum construction, including durable end tanks and CNC-machined ports, replacing the failure-prone plastic found in OE designs. Every unit is TIG-welded to ensure maximum strength and long-term reliability under pressure.

To handle the lateral loads of track use, Mishimoto incorporated strutted tubes within the core, providing essential reinforcement against bowing and flexing. The dual-pass flow configuration and louvered fin design work together to optimize thermal transfer. Compared to the stock unit, this exchanger offers a 23% increase in core volume and a 44% increase in external fin surface area, significantly expanding your vehicle's cooling capacity. For added longevity, the kit includes steel rock guards to protect the aluminum fins and tubes from road debris.

• Direct fit for 2021-2026 BMW M2, M3, and M4 (G8X platform)
• Full aluminum construction with TIG-welded end tanks and CNC-machined ports
• 23% increase in core volume and 44% increase in external fin surface area
• Strutted tubes for superior resistance to bowing and flexing under load
• Dual-pass flow configuration with louvered fins for maximum heat dissipation
• Includes heavy-duty steel rock guards to prevent puncture and fin damage
• Compatible with both manual and automatic transmission applications
• Manufacturer Part Number: MMHE-G80-21AT
• Mishimoto Lifetime Warranty