N54-M50 Adapter

BMW N54 – M50 Intake Manifold Adapter

This adapter is specifically designed to allow the installation of the high-flow BMW M50 intake manifold onto N54 engines, making it an ideal upgrade for high-performance and high-boost applications. By enabling the use of the M50 manifold’s larger and more efficient runner design, this adapter helps eliminate the airflow limitations of the factory N54 intake system.

PERFORMANCE-FOCUSED DESIGN

In modified N54 setups—especially those running upgraded or single turbo configurations—the stock intake manifold can become a restriction at higher RPM and boost levels. The M50 intake manifold offers larger runners and improved airflow characteristics, allowing the engine to breathe more efficiently at elevated power levels.

This adapter ensures a smooth and precise transition between the M50 intake manifold and the N54 cylinder head, minimizing turbulence and airflow disruption. The result is improved high-RPM breathing and more consistent power delivery under load.

PERFORMANCE BENEFITS

• Increased airflow in mid to high RPM ranges

• Improved cylinder filling in high-boost applications

• Enhanced top-end power and extended power band

• More stable AFR and EGT values under load

• Ideal for big-turbo, hybrid-turbo, and single-turbo N54 builds

PRECISION MACHINING & DURABLE CONSTRUCTION

Manufactured from a high-strength, heat- and pressure-resistant alloy, the adapter is designed to withstand the extreme conditions of turbocharged performance engines. Precision CNC machining ensures excellent sealing, accurate fitment, and long-term reliability even under sustained high boost.

OPTIMIZED INTERNAL FLOW GEOMETRY

The internal port geometry is carefully engineered to provide a seamless, step-free transition between the M50 intake runners and the N54 intake ports. This reduces airflow disruption and maximizes volumetric efficiency, ensuring consistent air distribution to all cylinders.

IDEAL FOR PERFORMANCE BUILDS

• Single-turbo or upgraded twin-turbo N54 setups

• High-boost street and track applications

• Drag, roll-racing, and circuit builds

• Projects prioritizing maximum airflow and top-end performance