S54 ITB Adapter Kit for BMW M50 / M52 / S50 / S52 Engines

Enhance the performance and throttle response of your BMW by mounting S54 individual throttle bodies (ITBs) onto M50, M52, S50, or S52 engines using this S54 ITB Adapter Kit. Designed to integrate BMW's renowned S54 throttle body induction system with earlier generation engines, this adapter kit provides smooth installation and optimized airflow, making it a perfect solution for high-performance builds.

This adapter plate is CNC-machined from high-quality aluminum, ensuring durability and precision fitment. All necessary mounting hardware, throttle components, and air system accessories are included, giving you everything needed for a seamless conversion. If you already own S54 ITBs, purchase the adapter kit alone; limited stock of used S54 throttle bodies is also available.

What’s included in the full adapter kit:

• CNC Aluminum Adapter Plate to fit S54 ITBs on M50/M52/S50/S52 engines
• Complete throttle assembly, including:
  • CNC Aluminum throttle bell crank with premium high-strength bearings
  • Throttle cable, linkage, and bell crank adapter
• Fuel injector connector extensions (EV1)
• Air plenum block-off plugs
• Mounting hardware (screws, washers, o-rings)

BMW M50 Applications:

3 Series

1990-1995     E36     320i / 325i / 325is
1994-1996     E35/E36     318ti

5 Series

1990-1996     E34     520i / 525i
1991-1996     E34 Touring     520i / 525i

Z Series

1995     E36/E37     Z3 2.0i / 2.5i

BMW M52 Applications:

3 Series

1994-1999     E36     320i / 323i / 323is / 328i / 328is
1997-2000     E35/E36     318ti / 323ti

5 Series

1996-1998     E39     520i / 523i / 528i

7 Series

1996-1998     E38     728i / 728iL

Z Series

1996-1999     E36/E37/E38     Z3 2.0i / 2.2i / 2.8i

BMW S50 US Applications:

3 Series

1994-1995     E36     M3

BMW S52 Applications:

3 Series

1996-1999     E36     M3

Z Series

1998-2000     E36/E37/E38     Z3M