aFe 46-38011 Silver Bullet Throttle Body Spacer for 2010-24 Toyota 4Runner &

Vehicle Fitment

• 2010-2024 Toyota 4Runner (V6 4.0L)
• 2010-2014 Toyota FJ Cruiser (V6 4.0L)

Features

• Silver Bullet throttle body spacer improves intake airflow and velocity
• Serrated and helix internal profile increases turbulence for better combustion
• Precision CNC-machined from 6061-T6 billet aluminum for strength and durability
• Lengthens intake tract to enhance throttle response and low-end torque
• Minimizes intake whistle typical with other spacer designs
• Direct bolt-on installation using factory throttle body mounting locations
• Compatible with factory and many aftermarket intake systems
• Can deliver modest performance gains in horsepower and torque

Specifications

• Brand: aFe Power
• Part Number: 46-38011
• Product Type: Throttle Body Spacer
• Material: 6061-T6 billet aluminum
• Design: Serrated/helix airflow profile
• Spacer Thickness: ~1.0"
• Engine Fitment: Toyota V6 4.0L
• Installation: Direct bolt-on - no modifications required
• Emissions: 50-state legal where applicable (verify local laws)
• Warranty: 2-year limited manufacturer warranty

Included Components

• 1x Silver Bullet throttle body spacer
• 1x Intake gasket
• Set of mounting hardware (bolts and washers)
• Installation instructions

Product Description

The aFe Power 46-38011 Silver Bullet Throttle Body Spacer is a precision-engineered performance accessory designed for Toyota 4Runner and FJ Cruiser vehicles with the 4.0L V6 engine. CNC-machined from durable 6061-T6 billet aluminum with a serrated and helix internal profile, this spacer enhances intake airflow velocity and combustion efficiency. By increasing turbulence and improving the intake air path, the spacer can help improve throttle response and mid-range torque.

Designed for direct bolt-on installation using existing factory mounting locations, the 46-38011 spacer installs easily and works with both stock and many aftermarket intake systems. Its performance-oriented design also helps reduce the intake whistle common with traditional spacers while providing a modest gain in power and responsiveness. Ideal for Toyota owners looking for a straightforward upgrade that enhances everyday driving performance on 4Runner and FJ Cruiser models.