22RPD - M5x M50 Manifold Swap Kit

22RPD OBD1 M50 Manifold Adapter Kit – OBD2 M/S52 Throttle Body & Fuel Rail

Maximize Airflow. Gain Power. Clean Installation.

This kit includes everything needed to install an OBD2 M/S52 throttle body and OBD2 M/S52 fuel rail onto an OBD1 M50 intake manifold. Unlike other kits on the market, we’ve designed this with a dedicated dipstick tube mount for a clean, factory-like installation. All hardware included.

Why Upgrade to the OBD1 Manifold?

The OBD1 M50 manifold has larger, higher-flowing runners than the restrictive OBD2 version, allowing for significantly improved airflow. When paired with our tuning package, this upgrade facilitates:

• 15-20WHP gains with no low-RPM power loss
• Increased top-end power for naturally aspirated and forced induction setups
• Better throttle response and improved breathing at high RPM

Kit Features:

• Full Compatibility – Adapts the OBD2 M/S52 throttle body and fuel rail to the OBD1 M50 manifold.
• Lifetime Durability – Laser-cut stainless steel construction for unmatched strength.
• Clean Installation – Includes a dipstick tube mount for a secure and professional install.
• OEM BMW Gaskets

Important Notes:

• You will need the correct throttle boots and IACV hoses to complete the install. These are available as OEM parts, or we offer upgraded options if needed.
• Designed in-house and tested for real-world performance.

Available Variations:

• Kit with OEM Replacement Gaskets – Includes new gaskets for a complete refresh.
• Complete Swap Kit (No Replacement Gaskets) – For those who already have gaskets and just need the adapter components.

Unlock the full potential of your M50 manifold—more power, better flow, and a clean install with 22RPD.