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Enhance throttle response and airflow with the aFe 46-38011 Silver Bullet Throttle Body Spacer, engineered to fit a wide range of Toyota 4.0L V6 applications. This precision CNC-machined billet aluminum spacer features a patented serrated/helix entry design that increases air turbulence just before it enters the intake manifold—resulting in improved throttle response, airflow velocity, and power gains.
Dyno-proven to deliver up to +6 horsepower and +9 lb-ft of torque, the Silver Bullet Spacer also helps smooth airflow for a more responsive driving experience. Unlike other spacers, aFe’s design reduces whistle noise while enhancing engine efficiency.
This spacer is fully compatible with aFe’s own intake systems (P/N: 51/54/75-76009 and 51/54/75-76010) and many factory airboxes.
Part Number: 46-38011
Gains: Up to +6 HP and +9 lb-ft torque (dyno-tested)
Construction: CNC-machined 6061-T6 billet aluminum
Design: Serrated/helix entry for turbulence and smoother airflow
Sound: Minimizes whistle commonly associated with spacers
Performance: Increases air speed, improves throttle response
Compatibility Note: Works with aFe intake systems 51/54/75-76009 and 76010
Install: Bolt-on with included hardware and gaskets
Warranty: Backed by aFe's limited warranty
2010–2024 Toyota 4Runner
2010–2014 Toyota FJ Cruiser (U.S. market)
2015–2023 Toyota FJ Cruiser (Non-U.S. market)
2010–2023 Toyota Land Cruiser Prado (Non-U.S. market)
⚠️ Emissions Note:
Some or all applications are 50-state legal. Please refer to CARB EO D-550-42 for specific details.
1 x aFe Silver Bullet Throttle Body Spacer (Part #46-38011)
Gasket(s)
Mounting Hardware
Installation Instructions
We are open Monday-Friday from 8am-6pm EST
Yes, customers located in and around the the Piedmont area are welcome to pick up their items from our retail location during normal business hours. Our address is:
Elite Race Fab
1514 Holbrook St Suite D-F
Greensboro, NC 27403
Elite Race Fab offers free ground shipping & handling to our retail customers within the lower 48 contiguous United States on most orders totaling $159.99 and higher, when the item being purchased is not a Freight/LTL item! Orders under $159.99 will be subject to a nominal $13.99 Flat shipping charge. Some exceptions and/or exclusions apply, in those scenarios you will be advised of any additional charges in the item details/description stating shipping exclussions/freight shipping required etc.
In regards to expedited and international shipping each order will need to be quoted on a case by case basis. You can obtain a quote two ways:
- From your shopping cart select "Request a Quote" prior to placing your order. We will review your proposed order and promptly respond with shipping estimates.
- Complete your order ahead of time indicating either expedited or international shipping during the checkout process. We will promptly determine shipping rates for your order and email you for approval and additional payment.
-Give us a call and we can ensure your item is shipped right then, to ensure you have it in time for your deadline.
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As far as price matching, we dont want to write a check we cant cash, but we certainly want to earn your business. With that said, we will go above and beyond to match our competitor's pricing when it is needed. Simply email us, click the live contact button, or give us a call and be sure to have a link to our competitor's site and please factor in any shipping and handling their website will be charging. We will then ensure you get the lowest price, and either match or beat their pricing.
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