The aFe Silver Bullet throttle body spacer mounts between the throttle body and intake manifold on the Ford Mustang GT and F-250/F-350 Super Duty. Its serrated helix bore creates turbulence in the incoming air to sharpen throttle response and build low-end torque without the whistle of helix-only designs. Machined from T-6061 billet aluminum; fits models with the factory intake only.
Specifications
| Type | CNC-machined throttle body spacer (aFe Silver Bullet) |
| Material | T-6061 billet aluminum |
| Finish | Natural aluminum |
| Fitment | 2011-2023 Ford Mustang GT/Boss 302/Bullitt/Mach 1 and 2020-2023 F-250/F-350 Super Duty (factory intake required) |
| Hardware Included | Yes |
| Gaskets Included | Yes |
| Color | Raw |
| Thickness | 0.75 IN |
| Gains | Up to +14 Horsepower hp and +15 Ft-Lbs lb-ft (aFe dyno) |
| Emissions | CARB EO D-550-43 (50-state legal) |
| Fitment Notes | Ford F-250 Super Duty 2020-2022, Ford F-350 Super Duty 2020-2022: V8-7.3L; Ford Mustang GT 2011-2023: V8-5.0L |
| Part Number | 46-33020 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2020-2022 | Ford | F-250 Super Duty | King Ranch |
| 2020-2022 | Ford | F-250 Super Duty | Lariat |
| 2020-2022 | Ford | F-250 Super Duty | Platinum |
| 2020-2022 | Ford | F-250 Super Duty | XL |
| 2020-2022 | Ford | F-250 Super Duty | XLT |
| 2020-2022 | Ford | F-350 Super Duty | King Ranch |
| 2020-2022 | Ford | F-350 Super Duty | Lariat |
| 2020-2022 | Ford | F-350 Super Duty | Platinum |
| 2020-2022 | Ford | F-350 Super Duty | XL |
| 2020-2022 | Ford | F-350 Super Duty | XLT |
| 2012-2013 | Ford | Mustang | Boss 302 |
| 2019-2020 | Ford | Mustang | Bullitt |
| 2011-2023 | Ford | Mustang | GT |
| 2015 | Ford | Mustang | GT 50 Years Limited Edition |
| 2015-2021 | Ford | Mustang | GT Premium |
| 2021 | Ford | Mustang | Mach 1 |
Documents: Installation Instructions (PDF)
Which vehicles does this fit?
- It fits the Ford F-250 Super Duty 2020-2022, Ford F-350 Super Duty 2020-2022, Ford Mustang 2011-2023. 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-550-43 (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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