ECS Tuning High Performance Aluminum Heat Exchanger - G2X B48 B58

BMW's B48 and B58 engines use a unique water-to-air charge air cooler. While this cooler is located inside the intake manifold, it relies on a front-mounted heat exchanger for heat dissipation. Many enthusiasts have found that this heat exchanger is a limiting factor when it comes to extracting more horsepower and torque from the Gen2 B58 platform. Its single-row, 25mm core is quick to heat soak, resulting in sky-high IATs and subsequently sending the DME into limp-home-mode. To solve this issue, we've designed an all-aluminum, performance-oriented heat exchanger suitable for street-focused, high-horsepower builds, track-oriented vehicles, and everything in between.

Engineered in-house by our dedicated team of BMW enthusiasts, our High Performance Aluminum Heat Exchanger offers a significant upgrade in both cooling capacity and overall system durability. To improve upon the factory design, our engineers started by addressing the weak, failure-prone plastic end tanks. Constructed from durable 6061-T6 aluminum and TIG-welded for added strength, our end tanks are guaranteed to outlast the factory design. Additionally, these proprietary end tanks feature CNC-machined billet aluminum hose connectors, flanges, and mounting brackets. This ensures seamless integration with the factory hoses and accessories, providing a trouble-free fit and effortless installation.

To boost cooling system efficiency and reduce IATs, we replaced the 25mm, single-row core with a dual-row, 42mm core. This nearly doubles the effective volume of the cooling system, thereby improving the heat exchanger's ability to dissipate heat. In turn, this upgrade grants cooler charge air temperatures, allowing you to extract more power from your B48 or B58-equipped BMW reliably!

Replaces OEM Part Numbers 17118666811 & 17115A54040.

FEATURES

• 6061 aluminum construction eliminates plastic end tank failures
• A performance-oriented dual-row core provides a 72% increase in overall core thickness
  • OE Heat Exchanger: Single-row, 25mm core
  • ECS High Performance Aluminum Heat Exchanger: Dual-row, 42mm core
• TIG-welded 6061-T6 aluminum end tanks
• End tanks are polished for a high-quality appearance
• CNC-machined connectors and bracketry ensure seamless fitment with factory radiator hoses, transmission cooler lines, condenser, and radiator
• Drop-in upgrade - no modifications required for installation!

PRODUCT DEVELOPMENT

Our High Performance Aluminum Heat Exchanger was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.