CTS Turbo S55 F80/F82/F83/F87 BMW M3/M4/M2 Heat Exchanger Upgrade

The CTS Turbo heat exchanger upgrade replaces the factory unit on S55-equipped BMW M2 Competition, M3 and M4 models with a significantly larger core design. Engineered to address heat soak during extended high-performance driving, this direct replacement unit increases coolant capacity and surface area for more efficient charge air cooling. Ideal for vehicles running aftermarket tuning or frequently used in demanding conditions, the upgrade maintains consistent intake temperatures across multiple runs. Precision-manufactured with optimised internal flow paths and durable TIG-welded construction for reliable long-term operation.