The aFe Silver Bullet throttle body spacer installs between the throttle body and intake manifold on the E46 BMW 325i, 325Ci and 325xi with the 2.5L inline-six. Its serrated/helix entry creates turbulence at the manifold to improve throttle response and low-end torque, without the whistle produced by helix-only spacers. It is precision machined from durable T-6061 billet aluminum and works with aFe intakes.
| Type | Throttle body spacer (Silver Bullet) |
| Material | T-6061 billet aluminum |
| Fitment | BMW 325i, 325Ci, 325xi (E46, L6-2.5L) |
| Part Number | 46-31008 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2006 | BMW | 325Ci | Base |
| 2001-2005 | BMW | 325i | Base |
| 2001-2005 | BMW | 325xi | Base |
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