aFe 46-38013 Silver Bullet Throttle Body Spacer for 22-25 Subaru BRZ & Toyot

Vehicle Fitment

• 2022-2025 Subaru BRZ (H4 2.4L)
• 2022-2025 Toyota GR86 (H4 2.4L)

Features

• Silver Bullet throttle body spacer engineered to improve intake airflow
• Serrated and helix internal profile increases air velocity and combustion efficiency
• Precision CNC-machined from 6061-T6 billet aluminum for durability
• Orange anodized finish for corrosion resistance and standout engine bay look
• Lengthens intake tract to enhance throttle response
• Reduces intake whistle common with traditional spacer designs
• Direct bolt-on installation using factory mounting locations
• Compatible with both stock and many aftermarket intake systems

Specifications

• Brand: aFe Power
• Part Number: 46-38013
• Product Type: Silver Bullet Throttle Body Spacer
• Material: 6061-T6 billet aluminum
• Finish: Orange anodized
• Design: Serrated/Helix airflow profile
• Engine Fitment: H4 2.4L (Subaru/Toyota)
• Installation: Direct bolt-on - no cutting or custom modification required
• Warranty: Manufacturer limited warranty
• Emissions: Not CARB exempt - verify local regulations

Included Components

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

Product Description

The aFe 46-38013 Silver Bullet Throttle Body Spacer is a high-quality performance upgrade designed for 2022-2025 Subaru BRZ and Toyota GR86 models equipped with the 2.4-liter flat-four engine. Precision CNC-machined from 6061-T6 billet aluminum with an attractive orange anodized finish, this spacer features a serrated and helix internal profile that optimizes airflow into the intake tract. By increasing intake air velocity and improving the air/fuel mixture, the spacer helps enhance throttle response and overall engine performance while reducing unwanted intake whistle.

Installation is straightforward using the existing factory throttle body mounting locations, and the included gasket and hardware ensure a complete bolt-on upgrade. Designed to work with both stock and many aftermarket intake systems, the 46-38013 Silver Bullet spacer provides a simple yet effective way to improve throttle feel, mid-range power delivery, and daily driving responsiveness on Subaru BRZ and Toyota GR86 vehicles. Performance gains up to approximately +2 horsepower and +2 lb-ft torque have been observed in some applications.