The aFe Silver Bullet is a CNC-machined billet-aluminum throttle body spacer that installs between the throttle body and intake manifold on your Corolla or UX200. Its serrated/helix design creates air turbulence in the intake manifold to raise combustion-chamber air pressure, improving throttle response and performance while reducing helix-only whistle. It uses all factory mounting locations and includes a gasket for a direct-fit, hassle-free install.
| Type | Billet aluminum throttle body spacer (aFe Silver Bullet) |
| Material | CNC-machined 6061-T6 billet aluminum |
| Design | Serrated/helix entry (US Pat. 07055513) |
| Finish | Black anodized |
| Included | Throttle body spacer and gasket |
| Fitment | Direct-fit for 2019-2025 Toyota Corolla & Lexus UX200 L4-2.0L |
| Part Number | 46-38012B |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2022 | Lexus | UX200 | Base |
| 2019-2022 | Lexus | UX200 | F Sport |
| 2019-2022 | Lexus | UX200 | Luxury |
| 2025-2026 | Toyota | Corolla | FX |
| 2023-2026 | Toyota | Corolla | LE |
| 2024-2025 | Toyota | Corolla | Nightshade |
| 2019-2026 | Toyota | Corolla | SE |
| 2021-2022 | Toyota | Corolla | SE Apex |
| 2020-2022 | Toyota | Corolla | SE Nightshade |
| 2019-2026 | Toyota | Corolla | XSE |
| 2021-2022 | Toyota | Corolla | XSE Apex |
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.
