TSP 120mm/112mm LS Throttle Body Adapter

TSP 120mm/112mm LS Throttle Body Adapter

The Texas Speed & Performance 120mm/112mm Throttle Body Adapter is the ideal solution for adapting your oversized throttle body to a standard LS intake. This CNC-machined billet adapter allows you to mount 112mm or 120mm Nick Williams throttle bodies onto 103mm intake manifolds with ease.

Designed with a smooth internal taper from 120mm to 112mm, the adapter can be ported further by the end user if needed — giving you flexibility to fine-tune airflow to your specific setup.

Key Features:

• Fitment: Adapts 112mm & 120mm throttle bodies to 103mm intakes
• Material: Precision CNC machined from 6061-T6 aluminum
• Tapered Design: Internal taper from 120mm to 112mm for smooth airflow transition
• Porting Friendly: Can be opened up further by the end user
• Finish: Raw aluminum — ready for use or custom finishing
• Hardware: Not included — requires M6 x 1.0 thread, 25mm long bolts

Whether you're running a large single throttle body or just need a clean transition between sizes, the TSP 120mm/112mm Adapter gives you a simple, effective solution — built to handle high-performance airflow demands.