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 Honda/Acura 2.4L K-series. 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 uses the factory mounting locations for a direct-fit install.
| Type | Billet aluminum throttle body spacer (aFe Silver Bullet) |
| Material | 6061-T6 billet aluminum |
| Design | Serrated/helix bore (no-whistle) |
| Fitment | Honda Accord, Civic Si, Acura TSX, ILX 2.4L (2008-2017) |
| Part Number | 46-37001 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2015 | Acura | ILX | Base |
| 2009-2014 | Acura | TSX | Base |
| 2012-2014 | Acura | TSX | Special Edition |
| 2008-2017 | Honda | Accord | EX |
| 2008-2017 | Honda | Accord | EX-L |
| 2008-2017 | Honda | Accord | LX |
| 2008-2012 | Honda | Accord | LX-P |
| 2008-2017 | Honda | Accord | LX-S |
| 2011-2012 | Honda | Accord | SE |
| 2013-2017 | Honda | Accord | Sport |
| 2017 | Honda | Accord | Sport Special Edition |
| 2012-2015 | Honda | Civic | Si |
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.
