The aFe Silver Bullet throttle body spacer mounts between the throttle body and intake manifold, where its serrated/helix design creates air turbulence that improves throttle response and builds low-end torque and horsepower. Machined from T-6061 billet aluminum, the serrated entry also eliminates the whistle common to helix-only spacers. It bolts to the factory mounting locations.
Specifications
| Type | CNC-machined throttle body spacer (aFe Silver Bullet) |
| Material | T-6061 billet aluminum |
| Engine | V6-3.5L |
| Hardware Included | Yes |
| Gaskets Included | Yes |
| Finish | Anodized |
| Color | Black |
| Gains | Up to +5 Horsepower hp and +10 Ft-Lbs lb-ft (aFe dyno) |
| Emissions | CARB EO D-550-47 (50-state legal) |
| Part Number | 46-37004 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2014-2020 | Acura | MDX | Base |
| 2014-2020 | Acura | MDX | SH-AWD |
| 2013-2018 | Acura | RDX | Base |
| 2014-2020 | Acura | RLX | Base |
| 2015-2020 | Acura | TLX | Base |
| 2015-2020 | Acura | TLX | SH-AWD |
| 2018-2024 | Honda | Odyssey | EX |
| 2018-2025 | Honda | Odyssey | EX-L |
| 2018-2025 | Honda | Odyssey | Elite |
| 2018-2022 | Honda | Odyssey | LX |
| 2023-2024 | Honda | Odyssey | Sport |
| 2025 | Honda | Odyssey | Sport-L |
| 2018-2025 | Honda | Odyssey | Touring |
| 2024-2025 | Honda | Passport | Black Edition |
| 2019-2025 | Honda | Passport | EX-L |
| 2019-2023 | Honda | Passport | Elite |
| 2026 | Honda | Passport | RTL |
| 2026 | Honda | Passport | RTL Blackout |
| 2026 | Honda | Passport | RTL Towing |
| 2019-2021 | Honda | Passport | Sport |
| 2019-2021 | Honda | Passport | Touring |
| 2022-2026 | Honda | Passport | TrailSport |
| 2026 | Honda | Passport | TrailSport Blackout |
| 2026 | Honda | Passport | TrailSport Elite |
| 2026 | Honda | Passport | TrailSport Elite Blackout |
| 2020-2022, 2025 | Honda | Pilot | Black Edition |
| 2016-2021 | Honda | Pilot | EX |
| 2016-2025 | Honda | Pilot | EX-L |
| 2016-2025 | Honda | Pilot | Elite |
| 2016-2021, 2023-2024 | Honda | Pilot | LX |
| 2021-2022 | Honda | Pilot | Special Edition |
| 2022-2025 | Honda | Pilot | Sport |
| 2016-2025 | Honda | Pilot | Touring |
| 2022-2025 | Honda | Pilot | TrailSport |
| 2017-2025 | Honda | Ridgeline | Black Edition |
| 2017-2019 | Honda | Ridgeline | RT |
| 2017-2025 | Honda | Ridgeline | RTL |
| 2017-2023 | Honda | Ridgeline | RTL-E |
| 2017-2019 | Honda | Ridgeline | RTL-T |
| 2017 | Honda | Ridgeline | RTS |
| 2017-2025 | Honda | Ridgeline | Sport |
| 2024-2025 | Honda | Ridgeline | TrailSport |
Documents: Installation Instructions (PDF)
Which vehicles does this fit?
- It fits the Acura MDX 2014-2020, Acura RDX 2013-2018, Acura RLX 2014-2020, Acura TLX 2015-2020, Honda Odyssey 2018-2025, Honda Passport 2019-2026 and 2 more models. The full year, make, model and submodel list is in the fitment table on this page.
Is it legal in my state?
- CARB EO D-550-47 (50-state legal).
What is it made of?
- T-6061 billet aluminum.
Are installation instructions available?
- Yes. The manufacturer instruction PDF is linked under Documents at the bottom of the description.
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- 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 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
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