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.
Specifications
| 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 — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
