Vibrant 12473 LS 92mm Throttle Body to 4in HD Clamp Adapter

Vehicle Fitment

• Universal Fitment (For GM LS 92mm Drive-By-Cable and Drive-By-Wire throttle body applications using 4.00-inch HD clamp charge piping)
• Compatible with custom turbocharged, supercharged, and fabricated intake systems

Fitment Notes

• Designed for universal/custom fabrication applications only
• Compatible with LS-based intake systems using 92mm throttle bodies
• Some adaptation or fabrication may be required depending on piping configuration
• Not intended for direct OEM vehicle replacement applications
• Works with Vibrant HD Clamp assemblies and compatible 4.00-inch tubing systems

Features

• Precision CNC-machined billet aluminum construction
• Designed for GM LS 92mm throttle body applications
• Converts throttle body outlet to 4.00-inch HD clamp connection
• Leak-free O-ring sealing system for high-boost applications
• Supports boost pressures up to 90 PSI
• Eliminates need for welding on throttle body assemblies
• Hard anodized black finish for corrosion resistance
• Engineered for turbocharged and race applications
• Quick bolt-on installation design
• Improves serviceability of charge piping systems

Specifications

• Part Number: 12473
• Product Type: Throttle Body Adapter
• Throttle Body Size Compatibility: 92mm LS
• Charge Pipe Connection Size: 4.00 in.
• Material: CNC-Machined Billet Aluminum
• Finish: Hard Anodized Black
• Maximum Pressure Rating: 90 PSI
• Seal Type: Dual O-Ring Design
• Application: Universal Performance/Fabrication
• Position: Intake System

Included Components

• 1x Vibrant Performance 12473 LS Throttle Body Adapter
• 1x Green O-Ring Seal
• 1x Black O-Ring Seal
• 1x M6 Mounting Hardware Set

Product Description

The Vibrant Performance 12473 LS 92mm Throttle Body to 4-Inch HD Clamp Adapter is engineered for high-performance turbocharged and fabricated intake systems requiring a secure, leak-free connection between a GM LS throttle body and large-diameter charge piping. Manufactured from precision CNC-machined billet aluminum, this adapter provides exceptional durability and reliable sealing performance under extreme boost conditions.

Designed specifically for 92mm LS throttle body applications, the 12473 adapter utilizes a dual O-ring sealing system capable of supporting pressures up to 90 PSI without the need for welding or permanent modifications. The integrated HD clamp connection simplifies installation and maintenance while reducing the risk of leaks commonly associated with traditional welded setups.

Ideal for custom race, street performance, drag, and forced induction builds, this adapter delivers professional-grade fitment and improved serviceability for custom intercooler and intake fabrication projects. Its hard anodized black finish adds corrosion resistance and a clean appearance suitable for show-quality engine bays.