AIRAID AIR-400-590 AIRAID Throttle Body Spacer for Ford

Mfg Part #

400-590

NP#

AIR400-590

Brand

Fits 1997 to 2004 Ford Expedition, F-150, F-150 Heritage. See every vehicle

• Constructed from 6061-T6 aircraft-grade aluminum with precision CNC machining, this spacer is engineered to deliver long-term durability and precise airflow control, even in demanding driving conditions.
• Designed to improve low-end torque, the spacer sharpens throttle response and provides a more immediate, energetic power delivery the moment you tap the pedal.
• Enhances mid-range horsepower for stronger acceleration during daily driving, towing, or passing on the highway, giving your engine a smoother and more consistent power curve.
• Includes precision-cut gaskets, high-quality hardware, and application-specific brackets to ensure a perfect fit and reliable seal.
• True bolt-on upgrade that installs in under an hour with common hand tools. No drilling, cutting, or modifications required, making it one of the easiest performance add-ons you can install.