The aFe 46-38005 Silver Bullet spacer covers the listed 4.6L and 5.7L V8 applications. It replaces the factory screen gasket with the supplied manifold O-ring and separate throttle-body-side gasket.
| Years / source scope | Model | Exact requirements |
|---|---|---|
| 2007–2021 current page; manual through 2019 | Toyota Tundra | 4.6L / 5.7L where actually equipped |
| 2008–2022 current page | Toyota Sequoia | 5.7L; 4.6L only where actually equipped |
| 2008–2019 manual | Toyota Land Cruiser / Lexus LX570 | 5.7L V8; later legacy rows held |
| 2010–2023 manual | Lexus GX460 | 4.6L V8 |
46-38005: Current Tundra/Sequoia headline years are broader than the older manual, which lists Tundra through 2019 and Sequoia 5.7L through 2019/4.6L through 2020. These are model-family ranges, not proof every engine was sold in every year. Existing Land Cruiser/LX570 rows through 2021 exceed the manual's 2019 limit and remain explicit source holds, with no later extension. The manual supports GX460 through 2023 and the 2012 gaps for Land Cruiser/LX570; those documented model-level applications are restored. Named trim rows remain engine-conditional.
| Detail | Value |
|---|---|
| Manufacturer Part Number | 46-38005 |
| Material / design | 6061-T6 billet aluminum; serrated/helix entry |
| Engine / application | See exact engine-specific fitment table and source qualifications |
| Sealing arrangement | Remove and retain the original screen gasket for return to stock. Install the supplied new O-ring in the manifold groove, then place the supplied flat gasket between spacer and throttle body. |
| Throttle-body fastening | The exact manual specifies 10 Nm (89 in-lb) for the supplied throttle-body bolts. |
| Emissions scope | The current page cites D-550-42 for some or all applications, but its full table was not independently read. Earlier D-550-17 has narrower listed scopes. Confirm exact exemption and labeling for the actual application. |
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
A model- and engine-specific Silver Bullet throttle-body spacer, not a complete intake or replacement throttle body.
Does it include a filter or coupling?The exact parts list below governs. Generic manufacturer page fields do not establish a supplied intake filter or coupling for this spacer.
Are gains guaranteed?No. Turbulence, throttle-response and whistle statements are manufacturer design claims, not guaranteed horsepower, fuel-economy or sound results for the actual engine.
Which sealing parts are used?Remove and retain the original screen gasket for return to stock. Install the supplied new O-ring in the manifold groove, then place the supplied flat gasket between spacer and throttle body.
What is the correct torque?The exact manual specifies 10 Nm (89 in-lb) for the supplied throttle-body bolts.
Are all original search rows certified?Current Tundra/Sequoia headline years are broader than the older manual, which lists Tundra through 2019 and Sequoia 5.7L through 2019/4.6L through 2020. These are model-family ranges, not proof every engine was sold in every year. Existing Land Cruiser/LX570 rows through 2021 exceed the manual's 2019 limit and remain explicit source holds, with no later extension. The manual supports GX460 through 2023 and the 2012 gaps for Land Cruiser/LX570; those documented model-level applications are restored. Named trim rows remain engine-conditional.
Can another spacer’s instructions be substituted?No. Gaskets, O-rings, brackets, screw sizes, control cables and intake restrictions differ by exact part number.
Does the EO reference cover every application?The current page cites D-550-42 for some or all applications, but its full table was not independently read. Earlier D-550-17 has narrower listed scopes. Confirm exact exemption and labeling for the actual application.
46-38005: installation details and any unresolved source scope must be matched to the actual vehicle before use.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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