AIRAID / 400-591
Part #: 400-591
UPC: 642046405915
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Description: AIRAID Throttle Body Spacer; The POWERAID Throttle Body Spacer is designed to enhance mid-range torque using a patented Helix Bore which spins intake air going through the throttle body spacer. Mounting hardware included for installation.
Description:
This is a Test Product Message for AIRAID brand products.
Description
The AIRAID Throttle Body Spacer is engineered to increase off-idle torque from roughly 800 rpm up to 3,000 rpm. Its patented Helix Bore design creates a spinning airflow as it moves through the spacer, boosting air velocity and improving atomization of the air/fuel mixture before it enters the combustion chamber. The result is enhanced part-throttle torque and stronger mid-range power.
Features & benefits
- 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.
Application summary
| Year | Make / model |
|---|---|
| 1997-2004 | Ford Expedition |
| 1997-2003 | Ford F-150 |
| 2004 | Ford F-150 Heritage |
| 1998-1999 | Lincoln Navigator |
Specifications
- GTIN
- 00642046405915
- Weight
- 1.1 lb
- Height
- 9.75 in
- Length
- 6 in
- Width
- 1.5 in
- EO
- Legal US
- Life cycle
- Available to Order
- Alt. part number
- AIR-400-591
- AAM brand code
- AIR
- Warehouse brand code
- ARD
- AAIA brand code
- BGPQ
Attributes
- Alternate Part Number
- AIR-400-591
- CARB EO Number
- D-609
- California Proposition 65
- WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Color
- Red
- Finish
- Black
- Gasket Or Seal Included
- Yes
- Gaskets Included
- Yes
- Item Weight
- 1.100 lbs. (0.5 kg)
- Material
- Aluminum
- Material Used
- Aluminum
- Mounting Hardware Included
- Yes
- Package Material
- Plastic Other
- Package Type
- Blisterpack
- Product Box Height
- 9.750 in. (248mm)
- Product Box Length
- 6.000 in. (152mm)
- Product Box Width
- 1.5 in (38 mm)
- Product Style
- AIRAID PowerAid
- Spacer Type
- 4-Barrel Open
- Street Legal In All US States
- Not legal for sale or use in California on any pollution controlled motor vehicle. NOTE: Some specific models and years may be legal in CA. Check the CARB status on your parts at knfilters.com.
- TUV Approved (Europe)
- No
- Thickness
- 1 in (25 mm)
- Title
- AIRAID AIR-400-591 AIRAID Throttle Body Spacer
- Warranty
- 12 Months - 24,000 Miles
- Weight
- 1.1 lb (0.5 kg)
Fitment status
Select a vehicle or engine to see whether this part applies to your application.
Application summary
1997-2004 Ford Expedition; 1997-2003 Ford F-150; 2004 Ford F-150 Heritage; 1998-1999 Lincoln Navigator
AIRAID 400-591
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