The aFe Silver Bullet is a CNC-machined billet-aluminum throttle body spacer that mounts between the throttle body and intake manifold on your GR86 or BRZ. Its serrated/helix design creates intake turbulence for a more complete combustion cycle, improving throttle response and torque while reducing the whistle of helix-only designs. It uses all factory mounting locations for a hassle-free, direct-fit installation.
| Type | Billet aluminum throttle body spacer (aFe Silver Bullet) |
| Material | CNC-machined 6061-T6 billet aluminum |
| Design | Serrated/helix entry |
| Finish | Orange anodized |
| Fitment | Direct-fit for 2022-2025 Toyota GR86 & Subaru BRZ H4-2.4L |
| Part Number | 46-38013 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2025 | Subaru | BRZ | Limited |
| 2022-2025 | Subaru | BRZ | Premium |
| 2024-2025 | Subaru | BRZ | TS |
| 2023 | Toyota | GR86 | 10th Anniversary Special Edition |
| 2022-2026 | Toyota | GR86 | Base |
| 2025 | Toyota | GR86 | Hakone Edition |
| 2022-2026 | Toyota | GR86 | Premium |
| 2024 | Toyota | GR86 | TRUENO Edition |
| 2026 | Toyota | GR86 | Yuzu Edition |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
