BMW High Performance Radiator | F-Chassis M2/M235i/335i/435i

CarBahn Dual-Core High-Efficiency Radiator – CSF Part #7078 Premium Cooling Performance. Built for Power and Precision. Designed for enthusiasts who demand more from their cooling system, the CarBahn High-Efficiency Radiator delivers exceptional heat management and long-term reliability. Built around CSF’s exclusive B-Tube technology and a 2-row, 42mm dual-core layout, this radiator provides the cooling headroom needed for spirited driving, track use, and power-enhanced platforms. Finished with a smooth satin polish and engineered with precision-machined fittings, this drop-in upgrade blends performance, durability, and OE-level fitment into a single high-value solution. Key Performance Features: 2-Row, 42mm Dual-Core Design – Increases system capacity and maximizes cooling potential. CSF Exclusive B-Tube Technology – B-shaped tubes increase strength and surface area compared to traditional O-tube designs, improving thermal efficiency. Ultra-Efficient Multi-Louvered Fin Design – 6.5mm fin height maximizes contact area for optimized airflow and heat transfer. CNC-Machined Quick-Connect Inlet/Outlet – OEM-style fittings ensure seamless compatibility with factory hoses and auxiliary lines. CNC-Machined Brackets Fittings – Guarantees precise fit and long-lasting durability under pressure. All-Aluminum Race-Style Drain Plug – Robust and corrosion-resistant. Smooth Satin Finish – Hand-polished for a refined, high-end appearance. True Drop-In Fitment – Fully compatible with factory AC condenser, mounting brackets, fan shroud, and quick-connect hoses. No modifications required. Why Upgrade? Factory radiators are often the weak link in a performance build—featuring plastic end tanks, aging cores, and limited capacity. Over time, cracks, clogged fins, and internal flow restrictions can lead to overheating and reduced engine efficiency. This upgraded radiator is designed to outlast and outperform, giving your cooling system the support it needs to keep temps in check even when you're pushing hard. Radiator Failure Symptoms Overheating during aggressive or extended driving Coolant leaks from end tanks or fittings Cracked plastic components from heat cycling Bent or debris-clogged fins limiting airflow CarBahn Recommendation We recommend replacing your upper and lower radiator hoses during installation to ensure full system reliability. A fresh set of hoses paired with this high-efficiency radiator forms the foundation of a cooling system built for performance and peace of mind.