The aFe Power Silver Bullet Throttle Body Spacer is engineered to optimize the air-fuel charge for improved engine efficiency and performance. Fits select 2008-2017 Honda Accord, Civic Si, and Acura ILX and TSX models.

Precision-machined from T-6061 billet aluminum, this spacer features a unique serrated/helix entry design. This specific geometry creates turbulence in the airflow just before it enters the intake manifold, which helps the air-fuel mixture atomize more effectively. Unlike standard helix-only spacers that are prone to a high-pitched whistling sound, the Silver Bullet design is optimized to eliminate noise while increasing manifold volume for better throttle response and gains in horsepower and torque.

• Manufactured from durable T-6061 billet aluminum
• Unique serrated/helix design maximizes airflow turbulence without the annoying whistle
• Increased intake manifold volume for improved performance and throttle response
• Designed to fit with both factory and aFe Power intake systems
• Includes all necessary hardware for a straightforward installation
• Manufacturer Part Number: 46-37001
• 2-Year Limited Warranty

Vehicle Fitment:

• 2013-2015 Acura ILX Base
• 2009-2014 Acura TSX Base
• 2012-2014 Acura TSX Special Edition
• 2008-2017 Honda Accord (EX, EX-L, LX, LX-P, LX-S, SE, Sport, Sport Special Edition)
• 2012-2015 Honda Civic Si

Fits 2002-2007 Infiniti G35 and Nissan 350Z, Altima, and Murano (V6-3.5L).

The aFe Power Silver Bullet Throttle Body Spacer is engineered to optimize airflow into your intake manifold for improved low-end horsepower and torque. Featuring a unique, patented Serrated/Helix combination design (US PAT 07055513), this spacer generates air turbulence that increases pressure in the combustion chamber, resulting in enhanced throttle response. This specific geometry also eliminates the high-pitched "intake whistle" common with helix-only spacer designs.

Precision machined from 6061-T6 billet aluminum, this spacer offers a lightweight yet high-strength solution with a perfect fit and finish. It bolts directly to factory mounting locations and is fully compatible with both OE and aFe/Takeda intake systems for a versatile performance upgrade.

• Manufacturer Part Number: 46-36008
• Material: 6061-T6 Billet Aluminum
• Design: Patented Serrated/Helix (US PAT 07055513)
• Engine Compatibility: V6-3.5L
• Installation: 15-minute bolt-on to factory mounting points
• Includes: All necessary gaskets and high-quality mounting hardware

Fits select 2008-2020 Infiniti G37, Q50, Q60, and Nissan 370Z (V6-3.7L).

Improve the low-end horsepower and torque of your VQ37VHR engine with the aFe Silver Bullet Throttle Body Spacer. This kit includes two spacers to accommodate the dual throttle body design found on high-performance Nissan and Infiniti V6 powerplants. Precision-machined from 6061-T6 billet aluminum, these spacers are designed to optimize the air-fuel charge entering the combustion chamber.

The Silver Bullet features a patented Serrated/Helix combination design (US PAT 07055513). This unique geometry creates air turbulence within the intake manifold, increasing air pressure in the combustion chamber for improved throttle response. Unlike standard helix-only designs, this serrated-helix hybrid significantly reduces the "intake whistle" often associated with aftermarket spacers. Installation is straightforward, utilizing factory mounting locations and including gaskets for a reliable seal.

• Construction: Precision CNC-machined 6061-T6 billet aluminum for high strength and perfect fitment.
• Optimized Airflow: Patented Serrated/Helix design increases air turbulence and intake pressure.
• Reduced Noise: Engineered to minimize the whistling sound common in other helix designs.
• Complete Kit: Includes two spacers, gaskets, and all necessary hardware for dual throttle body applications.
• Part Number: 46-36007

Fits 2011-2024 Infiniti QX56, QX80, and Nissan Armada (V8-5.6L).

The aFe Silver Bullet Throttle Body Spacer (MPN 46-36004) is engineered to optimize the intake airflow of your V8-powered SUV. Utilizing a patented Serrated/Helix design (US PAT 07055513), this spacer creates air turbulence in the intake manifold, which increases pressure in the combustion chamber. This results in improved throttle response and increased low-end torque. Unlike traditional helix-only designs, this dual-pattern bore also helps eliminate the high-pitched intake whistle common with other spacers.

• Precision machined from 6061-T6 billet aluminum for high strength and a lightweight, perfect fit.
• Patented Serrated/Helix design produces up to 6 HP and 8 ft-lbs of torque.
• Hassle-free installation using all factory mounting locations.
• Includes required gaskets and hardware for a complete bolt-on setup.
• Manufacturer Part Number: 46-36004.

Fits select 2005-2020 Nissan Frontier, 2005-2012 Pathfinder, and 2005-2015 Xterra models equipped with the V6-4.0L engine.

The aFe Silver Bullet throttle body spacer is engineered to improve off-idle torque and throttle response by optimizing the air intake path. Precision-machined from high-grade T-6061 billet aluminum, this spacer features a unique serrated/helix design. This internal geometry creates turbulence in the airflow at the manifold entry, which promotes better fuel atomization and increases air volume for improved combustion efficiency.

Unlike standard helix-only spacers that can produce a high-pitched whistling sound during acceleration, the Silver Bullet’s serrated entry is specifically designed to eliminate intake noise while maintaining performance gains. This unit is designed to work with both factory intake systems and aFe Power performance intakes.

• Precision-machined from T-6061 billet aluminum for durability and exact tolerances
• Unique serrated/helix design creates intake turbulence without the common whistle
• Increases manifold air volume to improve throttle response and torque
• Direct bolt-on installation using factory mounting points
• Includes all necessary hardware and gaskets for a complete install
• Manufacturer Part Number: 46-36002
• 2-Year Limited Warranty

Fits select 2004-2015 Nissan Titan, Armada, Pathfinder, and Infiniti QX56 models equipped with the V8-5.6L engine.

The aFe Power Silver Bullet throttle body spacer improves performance by creating turbulence in the air flow at the point just before it enters the engine intake manifold. This increased turbulence results in a more complete combustion cycle, improving horsepower, torque, and throttle response. Unlike standard helix-only spacers that often produce a high-pitched whistling sound, the Silver Bullet features a unique serrated/helix entry design that eliminates noise while maximizing air volume.

Precision machined from high-strength T-6061 billet aluminum, this spacer is built for durability and a perfect fit. It is designed to work seamlessly with factory airboxes or aFe Power intake systems.

• Precision machined from T-6061 billet aluminum
• Unique serrated/helix design generates turbulence without the whistling sound
• Increased intake manifold volume for better throttle response and performance
• Includes all necessary hardware for a straightforward installation
• Manufacturer Part Number: 46-36001
• 2-Year Limited Warranty

Fits select 2011-2025 Chrysler 300, Dodge Challenger, Dodge Charger, Jeep Gladiator, and Jeep Wrangler (V6-3.6L).

The aFe Power Silver Bullet throttle body spacer is designed to optimize the airflow into your intake manifold for improved off-idle torque, horsepower, and throttle response. Unlike generic spacers that can cause an irritating whistle, the Silver Bullet uses a specialized serrated/helix entry design (US PAT 07055513). This design creates a turbulent air charge at the point of entry, which helps the air-fuel mixture atomize more effectively while remaining quiet during operation.

Each spacer is precision CNC-machined from high-strength 6061-T6 billet aluminum for a perfect fit and long-term durability. This modification is a straightforward bolt-on upgrade that enhances engine efficiency without requiring permanent modifications to the vehicle.

• Manufacturer Part Number: 46-35008
• Material: 6061-T6 Billet Aluminum
• Design: Patented Serrated/Helix Entry (US PAT 07055513)
• Engine Compatibility: V6-3.6L Pentastar
• Installation: Simple bolt-on with included hardware
• Benefit: Increased air turbulence for improved combustion and fuel efficiency

Fits select 2011-2026 Jeep Wrangler, Grand Cherokee, and Dodge Durango models equipped with the V6-3.6L engine.

The aFe Silver Bullet Throttle Body Spacer (MPN 46-35003) is engineered to improve off-idle torque and throttle response by optimizing the air-fuel charge. This spacer is precision CNC-machined from high-strength T-6061 billet aluminum, providing a durable and lightweight addition to your intake system. The unique serrated/helix entry design creates air turbulence just before entering the manifold, which increases air volume and improves combustion efficiency. Unlike standard helix-only spacers, this design specifically eliminates the high-pitched whistling sound often associated with throttle body spacers.

• Precision Construction: CNC-machined from T-6061 billet aluminum for exact tolerances.
• Serrated/Helix Design: Optimizes airflow turbulence for increased horsepower and torque.
• No Whistle: Engineered to provide performance gains without the annoying intake whistle.
• Intake Compatibility: Designed to work seamlessly with both factory and aFe Power intake systems.
• Warranty: Includes a 2-year limited warranty.

Fits 2007-2011 Jeep Wrangler and Wrangler Unlimited (V6-3.8L).

The aFe Power Silver Bullet throttle body spacer is engineered to improve off-idle torque and throttle response by optimizing the air-fuel charge. Precision-machined from durable T-6061 billet aluminum, this spacer utilizes a unique serrated/helix design that creates turbulence in the intake manifold. This specific serrated entry breaks up the air stream to eliminate the high-pitched whistling sound often associated with standard helix-only spacers while increasing air volume for improved combustion efficiency.

• Precision-machined from T-6061 billet aluminum for weight and durability
• Serrated/helix entry design creates airflow turbulence and eliminates whistling
• Increases low-end torque and improves throttle response
• Designed to work with both factory and aFe Power intake systems
• Manufacturer Part Number: 46-35002
• Includes a 2-year limited warranty

Fits 1991-2006 Jeep Cherokee, Grand Cherokee, and Wrangler models (4.0L).

The aFe Power Silver Bullet throttle body spacer is engineered to improve off-idle torque and throttle response by optimizing the air-fuel charge. Using a unique serrated/helix entry design, this spacer creates turbulence in the airflow at the point of entry to the manifold. This increased turbulence helps the air-fuel mixture atomize more effectively, leading to improved combustion efficiency and better engine performance.

Precision CNC-machined from high-strength T-6061 billet aluminum, the Silver Bullet is built to withstand the rigors of both daily driving and off-road use. Unlike traditional helix-only spacers that can produce an intrusive whistling sound during operation, the serrated design of the Silver Bullet breaks up the air pressure to eliminate noise while maintaining performance gains.

• CNC-machined from durable T-6061 billet aluminum for a precise fit
• Unique serrated/helix design increases air turbulence for better throttle response
• Engineered to eliminate the whistling noise common in other throttle spacers
• Increases intake manifold volume to help improve horsepower and torque
• Direct bolt-on installation using factory mounting points
• Compatible with aFe Power cold air intake systems
• Manufacturer Part Number: 46-35001
• 2-Year Limited Warranty

Fits select 2004-2012 Chevrolet Colorado, GMC Canyon, Hummer H3, and Isuzu i-350/i-370 (L5-3.5L / 3.7L).

The aFe Silver Bullet throttle body spacer is designed to optimize intake airflow by creating turbulence at the point of entry into the manifold. Utilizing a patented serrated/helix design (US PAT 07055513), this spacer increases air velocity and pressure within the combustion chamber for improved throttle response and low-end torque. This unique serrated/helix combination also eliminates the high-pitched whistle common in helix-only spacer designs.

Every Silver Bullet is precision CNC-machined from 6061-T6 billet aluminum for exceptional strength and weight savings. The spacer features a black anodized finish for long-term corrosion resistance and a stealthy look under the hood. Installation is simple, as the unit bolts directly to factory mounting locations and includes a high-quality gasket to ensure a leak-free seal.

• CNC-machined from 6061-T6 billet aluminum
• Patented serrated/helix design increases air velocity and eliminates whistling
• Black anodized finish for corrosion resistance
• Bolts to all factory mounting locations for a hassle-free install
• Includes high-quality replacement gasket
• Manufacturer Part Number: 46-34018

Fits 2020-2026 Chevrolet Corvette C8 Stingray models. This Silver Bullet throttle body spacer is engineered to improve throttle response and mid-range torque by optimizing the air-flow into the intake manifold. Specifically designed for use with the factory air intake system, this kit includes a high-temperature silicone coupling to ensure a seamless seal and perfect alignment.

The spacer features a unique serrated/helix design (US PAT 07055513) that creates air turbulence just before the combustion chamber. This turbulence increases air pressure and atomization, resulting in improved performance and fuel efficiency. Unlike standard helix designs, the serrated entry also helps eliminate the annoying intake whistle often associated with throttle body spacers.

• Precision CNC-machined from 6061-T6 billet aluminum for high strength and light weight
• Black anodized finish for superior corrosion resistance and a stealthy look
• Includes a high-temperature silicone coupling, clamps, and a fresh gasket for a secure seal
• Uses all factory mounting points for a straightforward, bolt-on installation
• Manufacturer Part Number: 46-34017B
• Note: This model is designed for factory intakes only; it will not fit aFe POWER intake systems 57-10013D/R or 58-10007D/R

Fits select 2014-2026 Cadillac Escalade/ESV, Chevrolet Silverado 1500, Suburban, Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL models (V8-6.2L).

The aFe POWER Silver Bullet throttle body spacer is engineered to optimize the intake airflow of your GM 6.2L V8 engine. Using a unique, patented serrated/helix entry design (US PAT 07055513), this spacer creates air turbulence in the intake manifold. This increased air pressure and speed into the combustion chamber results in improved throttle response and measurable performance gains of up to +9 lb-ft of torque and +4 horsepower.

Unlike standard helix-only spacers that can produce a high-pitched whistling sound, the Silver Bullet's serrated combination design significantly reduces intake noise. Each unit is precision CNC-machined from high-strength 6061-T6 billet aluminum for a lightweight, perfect fit and finished with a durable anodized coating. Installation is straightforward, utilizing factory mounting locations and including a high-quality gasket for a reliable seal.

• Patented serrated/helix entry design creates turbulence and increases air speed
• CNC-machined from 6061-T6 billet aluminum with an anodized finish
• Performance gains: +9 lb-ft torque and +4 horsepower
• Reduces the whistling sound common with other helix-only spacers
• Compatible with aFe POWER intake systems for the V8-6.2L platform
• Includes necessary gasket and hardware for a hassle-free installation
• Manufacturer Part Number: 46-34016

Fits select 2014-2024 Cadillac Escalade, Chevrolet Camaro, Corvette, Silverado 1500, and GMC Sierra 1500, Yukon (V8-6.2L).

The aFe Power Silver Bullet throttle body spacer is engineered to improve off-idle torque and throttle response by optimizing the air-fuel charge. Unlike traditional smooth-bore spacers, the Silver Bullet features a unique serrated/helix entry. This design creates turbulence in the air stream as it enters the intake manifold, promoting a more complete combustion cycle while eliminating the high-pitched whistling sound common with other helix-only designs.

Precision-machined from T-6061 billet aluminum, this spacer provides a durable, lightweight solution that installs between the throttle body and intake manifold. The increased intake track volume helps improve air velocity, resulting in measurable gains in horsepower and torque across the RPM range.

• Material: Durable CNC-machined T-6061 billet aluminum
• Design: Unique serrated/helix bore to create air turbulence without whistling
• Performance: Enhances throttle response, horsepower, and low-end torque
• Installation: Direct bolt-on between throttle body and manifold
• Manufacturer Part Number: 46-34011
• Warranty: 2-year limited warranty

Fits select 2006-2026 Cadillac, Chevrolet, Dodge, GMC, Jeep, Mitsubishi, Pontiac, and Ram vehicles (V6-3.6L).

The aFe Power Silver Bullet throttle body spacer is engineered to improve mid-range torque and throttle response by optimizing airflow into the intake manifold. This spacer features a unique serrated/helix entry design that creates turbulence in the air charge just before it enters the engine. This turbulent airflow allows the air/fuel mixture to burn more completely, maximizing combustion efficiency and increasing overall performance.

Precision-machined from durable T-6061 billet aluminum, the Silver Bullet is designed for a perfect fit while eliminating the annoying high-pitched whistle common in traditional helix-only spacers. This is a straightforward bolt-on upgrade that installs directly into the factory induction system to help your V6 engine breathe more efficiently.

• Manufactured from high-strength T-6061 billet aluminum
• Serrated/helix entry design creates air turbulence for improved combustion
• Specially engineered to eliminate intake whistling sounds
• Enhances throttle response and mid-range torque
• Straightforward bolt-on installation
• Manufacturer Part Number: 46-34010
• Includes a 2-year limited warranty

Fits select 2014-2026 Chevrolet Silverado 1500, Suburban, Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL (V8-5.3L).

The aFe Power Silver Bullet throttle body spacer is engineered to optimize your engine's combustion cycle by improving the air-fuel mixture. Precision CNC-machined from 6061-T6 billet aluminum, this spacer features a unique serrated/helix design. This internal geometry creates air turbulence just before the intake manifold, allowing for a more thorough air/fuel charge burn. The result is a measurable increase in horsepower, torque, and throttle response across the RPM range.

Beyond performance gains, the serrated design specifically targets and eliminates the high-pitched intake whistle often associated with smooth-bore spacers. This kit is a direct-bolt-on upgrade that uses factory mounting points for a straightforward installation.

• Performance Gains: Up to +10 HP and +14 lbs. x ft. torque max gains
• Material: CNC-machined 6061-T6 billet aluminum for high strength and durability
• Design: Serrated/Helix bore creates turbulence for optimized combustion
• Fitment: Replaces or installs behind the OE throttle body
• Warranty: 2-Year Limited Warranty
• Manufacturer Part Number: 46-34008

Fits select 1996-2000 Chevrolet and GMC C2500, C3500, K2500, K3500, and C2500 Suburban models (V8-5.0L / 5.7L).

The aFe Silver Bullet throttle body spacer is engineered to optimize the air intake path for improved off-idle torque and throttle response. Precision machined from high-strength T-6061 billet aluminum, this spacer utilizes a unique serrated/helix entry design. This specialized geometry creates air turbulence in the manifold just before it enters the combustion chamber, leading to more efficient fuel atomization. Unlike standard helix-only designs, the serrated entry eliminates the high-pitched whistling sound often associated with throttle spacers.

By increasing the effective intake manifold volume, the Silver Bullet helps your V8 engine breathe more efficiently during acceleration. It is designed for a straightforward installation and is fully compatible with both factory and aFe Power air intake systems.

• Precision machined from durable T-6061 billet aluminum
• Unique serrated/helix design creates turbulence while eliminating whistling noise
• Increases manifold volume for improved torque and throttle response
• Direct bolt-on fitment for select GM 5.0L and 5.7L V8 engines
• Compatible with aFe Power performance intake systems
• Manufacturer Part Number: 46-34005
• Includes a 2-year limited warranty

Fits select 1987-1995 Chevrolet and GMC trucks and SUVs including C/K 1500/2500/3500, S10, Jimmy, and Blazer (V6-4.3L / 5.7L).

Optimize your engine's intake performance with the aFe Silver Bullet throttle body spacer. Precision-machined from durable T-6061 billet aluminum, this spacer is designed to increase intake manifold pressure by creating turbulence in the airflow at the point of entry. The unique serrated/helix design forces the air into a high-velocity vortex, improving fuel atomization and resulting in crisper throttle response and increased mid-range torque.

Unlike many helix-only spacers that produce an annoying whistling sound during acceleration, the Silver Bullet uses a specific serrated entry to disrupt the air just enough to eliminate noise while maintaining maximum flow efficiency. This unit is a direct-fit upgrade that installs using factory mounting points and is fully compatible with aFe Power air intake systems.

• Precision machined from T-6061 billet aluminum for heat resistance and durability
• Unique serrated/helix design increases air volume and velocity
• Engineered to eliminate the whistling noise common in other spacers
• Enhances throttle response and low-to-mid range torque
• Direct-fit installation with included hardware
• Manufacturer Part Number: 46-34004
• 2-Year Limited Warranty

Fits select 2007-2013 GM Trucks and SUVs, including Chevrolet Silverado/Tahoe/Suburban, GMC Sierra/Yukon, and Cadillac Escalade (6.2L).

The aFe Power Silver Bullet throttle body spacer is engineered to optimize the air intake path into the manifold, improving off-idle torque and throttle response. CNC-machined from durable T-6061 billet aluminum, this spacer features a unique serrated/helix entry design. This geometry creates a turbulent vortex of air that enhances the air-to-fuel mixture for more complete combustion, while the serrated design specifically eliminates the high-pitched whistling sound often found in standard helix-only spacers.

• Precision machined from T-6061 billet aluminum for strength and exact tolerances
• Unique serrated helix design increases air velocity and improves fuel atomization
• Engineered to eliminate annoying intake whistling
• Increases air volume to the manifold for improved engine performance
• Simple bolt-on installation; compatible with aFe Power intake systems
• Includes a 2-year limited warranty
• Manufacturer Part Number: 46-34003

The aFe Power Silver Bullet throttle body spacer is engineered to optimize the air-fuel charge for improved combustion efficiency and throttle response. This precision-machined spacer fits select 1999-2007 GM trucks and SUVs (6.0L), including Chevrolet Silverado, Tahoe, and Suburban, GMC Sierra and Yukon, Cadillac Escalade, and Hummer H2.

Constructed from durable T-6061 billet aluminum, the Silver Bullet uses a unique serrated/helix entry design. This specialized geometry creates turbulence in the intake manifold just before entry into the engine, increasing air volume and improving low-to-mid range torque. Unlike standard helix spacers, this design is specifically tuned to eliminate the high-pitched whistling sound often associated with throttle body spacers.

• Precision machined from T-6061 billet aluminum for maximum strength
• Unique serrated/helix design creates turbulence for better performance
• Engineered to eliminate intake whistling while increasing air volume
• Compatible with both factory and aFe Power intake systems
• Manufacturer Part Number: 46-34001
• Includes a 2-year limited warranty

Fits 2024-2026 Ford Mustang GT and Dark Horse (V8-5.0L).

Optimize the performance of your S650 dual-intake system with the aFe Silver Bullet Throttle Body Spacer set. These spacers are precision-engineered to lengthen the intake tract, increasing intake air speed for improved throttle response and torque. Featuring a unique serrated/helix entry design, these spacers create intake turbulence that promotes a more complete combustion cycle while simultaneously reducing the high-pitched whistle common in smooth-bore helix designs.

• Precision Construction: CNC-machined from 6061-T6 billet aluminum for exceptional strength and light weight.
• Anodized Finish: Finished in bright orange anodizing for corrosion resistance and a custom under-hood appearance.
• Dual Intake Ready: Includes two spacers to accommodate the factory dual throttle body configuration of the 5.0L Coyote engine.
• Simple Installation: Utilizes all factory mounting locations for a stable, hassle-free bolt-on process.
• Manufacturer Part Number: 46-33026N

Fits select 2011-2023 Ford Mustang and 2020-2023 Ford F-250/F-350 Super Duty models (V8-5.0L).

The aFe Power Silver Bullet throttle body spacer is engineered to optimize airflow and combustion efficiency. Precision-machined from high-grade T-6061 billet aluminum, this spacer features a unique serrated and helix-shaped entry. This design creates a turbulent air charge at the manifold, which improves the air-fuel mixture for enhanced horsepower, torque, and throttle response. Unlike standard helix designs that can produce a high-pitched whistling sound, the Silver Bullet’s serrated profile breaks up the airflow to provide the performance benefits of turbulence without the noise.

This spacer is designed for versatility, mounting securely between the throttle body and the intake manifold. It is compatible with both the factory intake system and aFe Power performance air intakes.

• Material: Precision-machined T-6061 billet aluminum
• Design: Serrated/helix entry for maximum turbulence
• Performance: Improved throttle response and low-end torque
• Compatibility: Fits factory and aFe intakes (Models with V8-5.0L engine only)
• MPN: 46-33020

Fits 2013-2019 Ford Explorer Sport and Platinum models equipped with the V6-3.5L engine.

The aFe Power Silver Bullet throttle body spacer is precision-engineered to optimize intake airflow for improved throttle response, horsepower, and torque. By creating turbulence in the air charge just before it enters the intake manifold, this spacer ensures a more efficient air-fuel mixture. The unique serrated/helix entry design provides the performance benefits of increased air volume while specifically eliminating the high-pitched whistling sound common in traditional helix-only spacers.

• Precision machined from durable T-6061 billet aluminum for exact tolerances
• Unique serrated/helix entry creates turbulence for better performance without whistling
• Increased intake manifold volume improves air velocity and engine response
• Compatible with both factory and aFe Power intake systems
• Includes necessary hardware for a straightforward installation
• Manufacturer Part Number: 46-33018
• Backed by a 2-Year Limited Warranty