The aFe Silver Bullet throttle body spacer sits between the throttle body and intake manifold, where its serrated/helix design generates air turbulence that sharpens throttle response and builds low-end torque and horsepower. Machined from T-6061 billet aluminum, the serrated entry also removes the intake whistle common to helix-only spacers. It bolts to the factory mounting locations and fits the Toyota Tacoma, 4Runner and T100 with the 2.4L or 2.7L four-cylinder.
Specifications
| Type | CNC-machined throttle body spacer (aFe Silver Bullet) |
| Material | T-6061 billet aluminum |
| Fitment | Toyota Tacoma/4Runner/T100 2.4L & 2.7L L4 |
| Part Number | 46-38003 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1996-2000 | Toyota | 4Runner | Base |
| 1994-1998 | Toyota | T100 | Base |
| 1995-2004 | Toyota | Tacoma | Base |
| 1998 | Toyota | Tacoma | DLX |
| 2000 | Toyota | Tacoma | Limited |
| 1998-2004 | Toyota | Tacoma | Pre Runner |
| 1998-2000 | Toyota | Tacoma | 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
