do88 Charge Cooler Manifold, BMW G-Serie (B58) / Toyota GR Supra A90

Unlock the full potential of your B58 Gen 2 engine with the do88 Charge Cooler Manifold, a high-performance upgrade designed for enthusiasts seeking both reliability and maximum power output. The stock B58 intake manifold features an integrated water-to-air charge cooler, but its plastic construction, limited cooling efficiency, and poor compatibility with auxiliary fueling restrict performance. Under track or high-boost conditions, the factory system often suffers from heat soak, high intake temperatures, and even structural risks like cracking. The do88 solution eliminates these weak points with an all-aluminum, precision-engineered manifold that provides superior airflow, advanced cooling, and built-in support for future power modifications.

At the core of the design is a Bar & Plate water-to-air cooler, 102mm thick and packed with high-density cooling fins, optimized through CFD analysis to balance maximum airflow with efficient heat transfer. The cast end tanks distribute air and coolant evenly across the core, ensuring stable intake temperatures even during extended track sessions. Unlike OE units, the do88 manifold supports auxiliary port fuel injection, with provisions for a custom fuel rail and compatibility with top-tier injectors like Injector Dynamics ID1050x and Bosch EV14 Compact. For additional flexibility, each cylinder runner includes a 1/8” NPT port, allowing nitrous or methanol injection for high-power builds.

The do88 manifold is built for performance without sacrificing OEM fitment. It sits neatly under the stock engine cover, preserving factory aesthetics while accommodating optional fuel rails and injection systems. A thermal barrier spacer, complete with precision-machined grooves and FKM O-rings, insulates the manifold from engine heat, reducing intake air temperatures and preventing heat soak. With robust aluminum construction, TIG-welded precision, and unmatched versatility, this manifold is the ultimate upgrade for Supra and BMW owners pushing their B58 engines beyond factory limits.

Key Features:

• 102mm Bar & Plate water-to-air charge cooler core with high-density fins
• Cast aluminum end tanks designed via CFD for optimal airflow and cooling
• Supports auxiliary port fuel injection with optional AN-8 custom fuel rail
• Compatible with Injector Dynamics ID1050x-34-14 & Bosch EV14 Compact injectors
• Integrated 1/8” NPT ports per cylinder for nitrous or methanol injection
• Additional 3 x 1/8” NPT vacuum/measurement ports & 2 x 1/8” BSPT water ports
• Thermal barrier spacer with custom FKM O-rings for reduced heat soak
• All-aluminum construction for durability under high boost pressures
• OEM engine cover compatibility for a clean, factory-style look

Product Summary

The do88 Charge Cooler Manifold is a premium performance upgrade for BMW B58 Gen 2 engines, including the Toyota Supra A90 and multiple G-series BMW models. Featuring a robust aluminum design, advanced cooling system, and built-in auxiliary fueling options, it solves the heat soak, airflow restriction, and structural issues of the OE manifold. Designed for both street and track use, it delivers reliability, power, and flexibility for high-horsepower builds.