ECS Tuning High Performance Aluminum Radiator - G2X B58

For performance-focused applications, the factory BMW G2X radiator simply doesn’t meet the demands of higher heat loads and spirited driving. Like many BMWs, the factory radiator features molded plastic end tanks—a common and well-documented failure point. In addition to this issue, its single-row core is far undersized for high-horsepower, track-focused builds, measuring a measly 34mm thick. With these issues in mind, we set out to offer the ultimate radiator upgrade for the G2X B58 platform: an all-aluminum, dual-row, high-performance core radiator that is built to last!

Engineered in-house by our dedicated team of BMW enthusiasts, our High Performance Aluminum Radiator 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, these end tanks are guaranteed to outlast the factory design. Additionally, our proprietary end tanks feature CNC-machined billet aluminum hose connectors, flanges, and mounting brackets. This ensures seamless integration with the factory hoses, fan shroud, and accessories, providing a trouble-free fit and effortless installation.

To increase thermal capacity, we replaced the 34mm, single-row core with a dual-row, 42mm core. This increases the effective volume of the cooling system, thereby improving the radiator's ability to dissipate heat. In turn, this upgrade translates to increased system efficiency, granting cooler water temperatures on both the street and the track. 

Replaces OEM Part Numbers 17118666740 & 17115A30677.

FEATURES

• 6061 aluminum construction eliminates plastic end tank failures
• A performance-oriented dual-row core provides a 45% increase in overall core thickness
  • OE Radiator: Single-row, 34mm core
  • ECS High Performance Aluminum Radiator: 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 intercooler
• Drop-in upgrade - no modifications required for installation!

PRODUCT DEVELOPMENT

Our High Performance Aluminum Radiator 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.