Secondary Air Injection Block-Off Plate (M52TU/M54) + Gasket

Our Secondary Air Injection block-off plate seals the factory secondary-air port on the cylinder head, allowing for removal of the SAI system. Commonly used on vehicles running catless headers or turbocharged setups, where catalyst heating is no longer needed.

Features

• CNC-machined from 6061 aluminum
• Anodized for corrosion resistance and a long-lasting finish
• Precision fit for the factory SAI port on the cylinder head

What’s Included

• (1) 6061 CNC-machined secondary air injection block-off plate
• (1) New Victor Reinz gasket for optimal sealing

Fitment

• BMW E46 3 Series (1999–2006) — M52TU / M54
• BMW E39 5 Series (1999–2003) — M52TU / M54
• BMW E60 5 Series (2004–2005) — M54
• BMW E53 X5 3.0i (2001–2006) — M54
• BMW Z3 (1999–2002) — M52TU / M54