Ready to move beyond your current 102mm or 103mm throttle body setup? The SDPC 112mm Throttle Body Adapter provides a simple solution for installing a 112mm Nick Williams throttle body on an LSx intake manifold utilizing the common 4-bolt throttle body mounting pattern.

This makes the adapter especially useful for builds that have outgrown their existing throttle body but aren’t ready—or don’t need—to replace the entire intake manifold.

Upgrade Your Existing Intake Setup

As engine combinations become more demanding, particularly with larger-displacement engines, aggressive naturally aspirated builds, superchargers, and turbo systems, increasing throttle body size can help remove a potential airflow restriction.

The SDPC adapter allows you to make the jump from a 102mm or 103mm throttle body to a 112mm Nick Williams unit while retaining your compatible 4-bolt LSx intake manifold.

It’s a straightforward way to support the next stage of your build without unnecessarily replacing components that are already working well.

Satin or Black Finish

Choose the finish that best complements your engine bay:

• Satin
• Black

Whether you’re upgrading an existing combination or putting together a new high-airflow LSx setup, the SDPC 112mm Throttle Body Adapter provides the interface needed to pair a Nick Williams 112mm throttle body with a compatible 4-bolt LSx intake.

Part Number: SD112ADPT

Fitment Note: Designed specifically for use with a 112mm Nick Williams throttle body and compatible 4-bolt-pattern LSx intake manifolds. Verify intake manifold and throttle body compatibility before ordering.