Heat Exchanger Kit | BMW G8X M2/M3/M4

CarBahn High-Performance Heat Exchanger Kit – BMW M2, M3 & M4 (G80, G82, G83, G87 | 2021–2025)

Maximize your BMW M2, M3, or M4's cooling performance with the CarBahn Heat Exchanger Kit, engineered for enthusiasts demanding greater power, reliability, and thermal efficiency. Whether you're tracking your car or driving spiritedly in hot climates, this upgrade ensures your S58 engine stays cooler under pressure.

Developed using Formula 1-derived technology, this high-efficiency heat exchanger increases cooling capacity by up to 40%, reducing intake temperatures and helping prevent power loss due to heat soak. It’s the perfect solution for tuned or high-boost BMWs, and a critical component when upgrading with CarBahn performance software.

Designed for seamless integration with BMW G8X M2, M3, and M4 platforms, including the M3 CS, M4 CSL, and xDrive variants, this heat exchanger maintains OEM-level fit and finish while delivering race-proven performance.

Key Features:

• Fits 2021–2025 BMW G80 M3, G82/G83 M4, and G87 M2
• Increases cooling efficiency by up to 40%
• Reduces intake air temps for consistent horsepower output
• Ideal for track use, warm climates, or high-performance street builds
• Direct bolt-on design with no permanent modifications
• Engineered by legendary BMW tuner Steve Dinan
• Pairs perfectly with CarBahn tuning software for warranty-backed performance

Boost reliability, maintain consistent power, and safeguard your investment with the CarBahn Heat Exchanger Kit for BMW M2, M3 & M4—where motorsport engineering meets street-ready durability.