aFe Silver Bullet Throttle Body Spacer Kit 46-38004 for Toyota 4.7L V8

Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. Silver Bullet Throttle Body Spacer Kit Toyota Tundra 05-09 / Sequoia 05-09 / 4Runner 05-09 / Land Cruiser 06-07 / Lexus GX 470 05-09 / LX 470 06-07 V8-4.7L

• Precision Machined From T-6061 Billet Aluminum
• Produces Increased HP/Torque/Throttle Response
• Increased Air Volume For Better Performance
• 2 Year Limited Warranty
• Special Helix Design
• No Annoying Whistle
• Fits w/aFe Intakes

Improve intake airflow and throttle response with the aFe Silver Bullet Throttle Body Spacer Kit, Part Number 46-38004. Designed for select Toyota and Lexus vehicles equipped with the 4.7L V8 engine, this spacer introduces controlled turbulence immediately before the throttle body. The airflow effect is intended to increase air volume entering the intake manifold, supporting improved horsepower, torque, throttle response, and fuel efficiency.

Manufactured from durable T-6061 billet aluminum, the spacer uses a precision-machined serrated and helix entry design. This configuration promotes airflow turbulence while helping eliminate the irritating whistle commonly associated with helix-only throttle body spacers. The kit is compatible with aFe intake systems and is backed by a 2-year limited warranty for added confidence.

• Brief Description: Performance throttle body spacer designed to improve intake airflow characteristics on select 4.7L V8 applications.
• What's Included: One aFe Silver Bullet throttle body spacer kit with installation hardware as supplied by the manufacturer.
• Fitment: Toyota Tundra and Sequoia, Toyota 4Runner, Toyota Land Cruiser, Lexus GX 470, and Lexus LX 470 applications equipped with the 4.7L V8. Verify exact vehicle configuration before ordering.
• Emissions Information: EPA compliant and associated with California Air Resources Board Executive Order D-550-42 where applicable. Review local emissions requirements before installation.

For off-road, street, and towing applications, the aFe Silver Bullet spacer provides a straightforward intake-side upgrade without requiring internal engine modifications. Its billet aluminum construction and specialized entry profile are engineered for durability, consistent fit, and practical performance enhancement.

Features:

• Precision-machined from durable T-6061 billet aluminum for strength and long-term service.
• Serrated and helix entry design promotes controlled intake-air turbulence and increased air volume.
• Supports improved horsepower, torque, throttle response, and fuel efficiency.
• Designed to reduce the annoying whistle associated with helix-only throttle body spacers.
• Compatible with aFe intake systems.
• Backed by a 2-year limited warranty.

Fitments:
2003 Lexus GX470 Base
2003 Toyota 4Runner Limited
2003 Toyota 4Runner Sport
2003 Toyota 4Runner SR5
2004 Lexus GX470 Base
2004 Toyota 4Runner Limited
2004 Toyota 4Runner Sport
2004 Toyota 4Runner SR5
2005 Lexus GX470 Base
2005 Toyota 4Runner Limited
2005 Toyota 4Runner Sport
2005 Toyota 4Runner SR5
2005 Toyota Sequoia Limited
2005 Toyota Sequoia SR5
2005 Toyota Tundra Base
2005 Toyota Tundra Limited
2005 Toyota Tundra SR5
2006 Lexus GX470 Base
2006 Lexus LX470 Base
2006 Toyota 4Runner Limited
2006 Toyota 4Runner Sport
2006 Toyota 4Runner SR5
2006 Toyota Land Cruiser Base
2006 Toyota Sequoia Limited
2006 Toyota Sequoia SR5
2006 Toyota Tundra Base
2006 Toyota Tundra Limited
2006 Toyota Tundra SR5
2007 Lexus GX470 Base
2007 Lexus LX470 Base
2007 Toyota 4Runner Limited
2007 Toyota 4Runner Sport
2007 Toyota 4Runner SR5
2007 Toyota Land Cruiser Base
2007 Toyota Sequoia Limited
2007 Toyota Sequoia SR5
2007 Toyota Tundra Base
2007 Toyota Tundra Limited
2007 Toyota Tundra SR5
2008 Lexus GX470 Base
2008 Toyota 4Runner Limited
2008 Toyota 4Runner Sport
2008 Toyota 4Runner SR5
2008 Toyota Sequoia Limited
2008 Toyota Sequoia SR5
2008 Toyota Tundra Base
2008 Toyota Tundra Limited
2008 Toyota Tundra SR5
2009 Lexus GX470 Base
2009 Toyota 4Runner Limited
2009 Toyota 4Runner Sport
2009 Toyota 4Runner SR5
2009 Toyota Sequoia SR5
2009 Toyota Tundra Base
2009 Toyota Tundra Limited
2009 Toyota Tundra SR5

Air Freight Prohibited: false
Not Carb Approved: false
Carb Eo Number: D-550-42
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: Compliant
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1