The aFe Silver Bullet 46-38010 is a billet spacer that sits between the intake manifold and the throttle body on the 3.5L V6 Tacoma. The manufacturer lists it for Toyota Tacoma 16-23 V6-3.5L applications and describes it as constructed from durable 6061-T6 billet aluminum. Its serrated/helix entry is meant to eliminate whistle sound that plain helix spacers can produce while adding turbulence to incoming air. Buyers who want a machined, factory-bolt-pattern spacer rather than a cheap cast or plate adapter get a cleaner build. The manufacturer also states it will work with aFe POWER's Momentum GT intakes (P/N: 51/54/75-76005), which makes it a logical add-on for owners already running that intake.
Set realistic expectations before buying. The manufacturer frames the benefit as improved throttle response and higher intake air speed, not a published horsepower figure for this part. Owners on user forums are divided, and many doubt that any throttle body spacer produces measurable power on modern fuel-injected engines, so treat this as a throttle-feel and sound upgrade rather than a stand-alone performance mod. Searches like "2016-2023 Tacoma 3.5L throttle body spacer," "aFe serrated helix TBS," and "3rd gen Tacoma throttle response mod" point to the right application, and pairing the spacer with a cold-air intake is the most common setup owners discuss.
The manufacturer states that it works with the Momentum GT intakes, part numbers 51/54/75-76005.
The manufacturer describes gains in throttle response and intake air speed and does not publish a horsepower figure for this part. Owners on user forums are skeptical, with many reporting little to no measurable power gain on modern fuel-injected engines.
The manufacturer lists the 3.5L V6 Tacoma from 2016 through 2023. Fitment tables differ in how they break out years and trims, so confirm with the manufacturer before ordering.
Owners on user forums describe this as a straightforward bolt-on. The general sequence is to disconnect the intake elbow from the throttle body, remove the four bolts holding the throttle body to the manifold, and lift the throttle body off. Set the spacer and its gasket between the manifold and throttle body, making sure the arrow on the spacer points in the direction of airflow. Reinstall the throttle body using the extended bolts included in the kit, then reattach the intake elbow. One owner who installed a spacer with a throttle linkage extension found the idle ran high afterward; the fix was to check the throttle cable and linkage adjustment, and another suggested disconnecting the battery to reset the idle learn. Confirm the throttle linkage is not binding before starting the engine.
