Description
The aFe Silver Bullet Throttle Body Spacer – Orange (afe46-38013) improves airflow efficiency and throttle response on the Toyota GR86 and Subaru BRZ equipped with the 2.4L H4 engine. Featuring a serrated/helix entry design, this spacer creates controlled intake turbulence just before the combustion chamber, promoting more complete fuel atomization for improved horsepower, torque, and throttle response—while also reducing intake whistle. Finished in a high-visibility orange anodized coating, it adds both performance and style to the engine bay.
Key Features
- Dyno-Proven Performance Gains – Up to +2 HP and +2 lbs. x ft. torque
- CNC-Machined 6061-T6 Billet Aluminum – Lightweight, high-strength construction with precision fit
- Serrated/Helix Entry Design – Creates turbulence for improved combustion efficiency and reduced whistle
- Increases Intake Air Speed – Enhances throttle response and drivability
- Orange Anodized Finish – Durable, corrosion-resistant finish that stands out
- Hassle-Free Installation – Utilizes factory mounting locations; no cutting or drilling required
Serrated/Helix Design
- Creates controlled intake turbulence before the combustion chamber
- Breaks up fuel for more complete combustion
- Improves horsepower, torque, and throttle response
- Reduces intake whistle common with helix-only designs
Installation Is a Snap
This Silver Bullet Throttle Body Spacer installs using factory mounting points for a direct bolt-on installation with no modifications required.
Fitment Note
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Compatible with all aFe POWER intake systems
Vehicle Applications
- 2022–2025 | Subaru | BRZ | Gas | H4-2.4L
- 2022–2025 | Toyota | GR86 | Gas | H4-2.4L
