New GXX B58/S58 Aluminum Radiator / Heat Exchanger

Maximize cooling system efficiency and performance with our High Performance Cooling System Bundle and complete system upgrade that includes our High Performance Aluminum Radiator and High Performance Aluminum Heat Exchanger. Designed to handle the intense heat generated by tuned and track-driven BMWs, this package delivers superior temperature control, improved reliability, and consistent performance under demanding conditions.

For performance-focused applications, the factory BMW G2X radiator and heat exchanger simply don't meet the demands of higher heat loads and spirited driving. Like many BMWs, the factory heat exchanger and radiator feature molded plastic end tanks common and well-documented failure point. In addition to this issue, the single-row cores are far undersized for high-horsepower, track-focused builds, measuring a measly 25mm (heat exchanger) and 34mm (radiator). With these issues in mind, we set out to offer the ultimate cooling system upgrade for the G2X B58 platform: an all-aluminum, dual-row, high-performance radiator and heat exchanger kit!

Engineered in-house by our dedicated team of BMW enthusiasts, our cooling upgrade kit offers significant increases 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 the radiator's 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. The heat exchanger received the same 42mm dual-row core, a massive increase over the factory 25mm size. This grants lower IATs, keeping your car cooler on both the street and the track!