aFe Silver Bullet Throttle Body Spacer for Select Ford and Lincoln 1997-2010 (V8-5.4L) 46-33001

Fits select 1997-2010 Ford F-150, F-250/F-350 Super Duty, Excursion, Expedition, and Lincoln Mark LT/Navigator (V8-5.4L).

The aFe Silver Bullet throttle body spacer improves mid-range 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 entry design. This combination creates a turbulent vortex of air just before it enters the intake manifold, leading to more complete combustion and increased cylinder filling. Unlike standard helix-only spacers, the serrated entry eliminates the high-pitched whistling sound typically associated with these components.

Designed for a straightforward installation, this spacer increases intake plenum volume to improve performance across the power band. It is fully compatible with aFe Power intake systems and utilizes factory mounting locations for a secure fit.

• Precision machined from T-6061 billet aluminum for durability
• Serrated/helix design creates air turbulence without the annoying whistle
• Increases air volume for improved horsepower, torque, and fuel efficiency
• Compatible with aFe Power intake systems
• Manufacturer Part Number: 46-33001
• Includes a 2-year limited warranty