CSF 8215 High Performance 2-Row 42mm Front Mount Heat Exchanger for 2021-2025 BMW M2/M3/M4

Fits 2021-2025 BMW M2, M3, and M4 (G80, G81, G82, G83, G87) including Base, Competition, CS, and CSL models.

The CSF #8215 High Performance Front Mount Heat Exchanger is engineered to replace the restrictive factory single-row unit with a massive 2-row, 42mm thick core. Utilizing CSF’s exclusive B-Tube technology, this upgrade increases surface area for maximum heat dissipation while improving airflow to the radiator behind it. This design significantly reduces Intake Air Temperatures (IATs) and provides faster recovery from heat soak, essential for high-performance driving and track use.

Built for durability in aggressive environments, the kit includes two black rock guards to protect the core from road debris—a critical addition for vehicles equipped with aftermarket open-face grilles. For vehicles with the ZF8 automatic transmission, this heat exchanger is designed to work seamlessly with the CSF #8221 Race-Spec Transmission Oil Cooler using the included mounting kit.

• CSF #8215 42mm 2-Row Ultra-High-Performance Core
• Exclusive B-Tube Technology for 15% better heat transfer than standard tubes
• 6.5mm tall multi-louvered fins for optimized airflow
• 100% all-aluminum TIG-welded construction for long-term reliability
• CNC machined mounting brackets and OEM-style "Quick Connect" inlet/outlet
• Hand-polished "Mirror Finish"
• Includes upper and lower Black Rock Guards and ZF8 transmission cooler mounting hardware
• True plug-and-play drop-in fitment with no modifications required
• 2-Year Limited Warranty