The aFe Silver Bullet throttle body spacer is CNC-machined from 6061-T6 billet aluminum and installs between the throttle body and intake manifold on the Toyota 3.4L V6. Its serrated/helix bore creates turbulence in the incoming air charge to sharpen throttle response and build low-end torque, without the whistle common to helix-only designs. It bolts to the factory locations using the supplied gaskets for a direct-fit install.
Specifications
| Type | Billet aluminum throttle body spacer (aFe Silver Bullet) |
| Material | 6061-T6 billet aluminum |
| Design | Serrated/helix bore (no-whistle) |
| Fitment | Toyota Tacoma, Tundra, 4Runner, T100 3.4L V6 (1995-2004) |
| Part Number | 46-38001 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001 | Toyota | 4Runner | Base |
| 1996-2002 | Toyota | 4Runner | Limited |
| 1996-2002 | Toyota | 4Runner | SR5 |
| 1995,1998 | Toyota | T100 | Base |
| 1996-1997 | Toyota | T100 | DLX |
| 1995 | Toyota | T100 | DX |
| 1995 | Toyota | T100 | One-Ton DLX |
| 1995-1998 | Toyota | T100 | SR5 |
| 1999-2004 | Toyota | Tacoma | Base |
| 1999-2000 | Toyota | Tacoma | Limited |
| 1999-2004 | Toyota | Tacoma | Pre Runner |
| 2001-2004 | Toyota | Tacoma | S-Runner |
| 1999-2000 | Toyota | Tacoma | SR5 |
| 2000-2004 | Toyota | Tundra | Base |
| 2000-2004 | Toyota | Tundra | SR5 |
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
