Spool Performance Billet Manifold Gen 1 B58 540i Top Mount Turbocharger Kit

Spool Performance Billet Manifold Gen 1 B58 540i Top Mount Turbocharger Kit

This Spool top-mount turbo kit relocates the turbo above the engine and replaces the factory manifold with a higher-flow billet design. It is intended for serious builds that need substantially more airflow than the stock turbo can provide while keeping the installation clean and serviceable.

Technical highlights

• Dual ceramic ball-bearing CHRA for lower friction and faster response
• Five-axis-milled billet compressor wheel for accurate blade geometry and airflow
• Manufacturer-rated power class of approximately 1050+ hp, depending on the complete build

The turbo is only one part of the package. Fuel system, intake, exhaust, cooling, engine internals and calibration must all be sized for the same target. Final output depends on the complete build, fuel and tuning.

Several turbo and finish configurations are available. Check the product options and make sure the rest of the build matches the selected turbo.