---
product_id: 49103244
title: "Airaid 450-638 Throttle Body Spacer"
brand: "airaid"
price: "$U21066"
currency: UYU
in_stock: true
reviews_count: 5
category: "Airaid"
url: https://www.desertcart.uy/products/49103244-airaid-450-638-throttle-body-spacer
store_origin: UY
region: Uruguay
---

# Improves fuel efficiency Torque gains 800-2500 RPM Helix Bore tech boosts air velocity Airaid 450-638 Throttle Body Spacer

**Brand:** airaid
**Price:** $U21066
**Availability:** ✅ In Stock

## Summary

> 🚗💨 Unlock your engine’s hidden potential with every twist of the throttle!

## Quick Answers

- **What is this?** Airaid 450-638 Throttle Body Spacer by airaid
- **How much does it cost?** $U21066 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/49103244-airaid-450-638-throttle-body-spacer)

## Best For

- airaid enthusiasts

## Why This Product

- Trusted airaid brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Spin Up Your Power:** Helix Bore design creates a high-velocity air swirl for superior fuel atomization and throttle response.
- • **DIY Friendly Upgrade:** Easy installation with basic hand tools—get performance gains without the garage hassle.
- • **Feel the Torque Surge:** Experience noticeable torque gains in the critical 800-2500 RPM range for that instant off-idle punch.
- • **Fuel Smarter, Drive Longer:** Optimizes air-fuel mixture to maximize fuel efficiency without sacrificing performance.
- • **Proudly American, Built to Last:** Made in the USA with a lifetime no-hassle warranty for peace of mind and quality assurance.

## Overview

The Airaid 450-638 Throttle Body Spacer features a patented Helix Bore design that spins incoming air to improve atomization, delivering significant torque gains between 800-2500 RPM and enhanced fuel efficiency. Easy to install with basic tools, this USA-made spacer offers a reliable, lifetime-backed upgrade for drivers seeking immediate performance and throttle response improvements.

## Description

The PowerAid was developed to enhance your vehicle's off-idle to mid-range performance and efficiency. The unique "Helix Bore" design of the PowerAid creates a spinning action of the incoming air. As air passes through your throttle body, this helical effect causes the air molecules to organize and maintain high velocity. The organization and high velocity of the air is extremely beneficial because it helps to provide a superior atomized mixture of fuel and air all the way into the combustion chamber. The benefits you will see are tremendous torque gains between 800 to 2500 RPM, and potential increases in your fuel economy, depending on driving conditions. PowerAid Throttle Body Spacers are proudly made in the USA and come with our Lifetime "No Hassle.

Review: Improved performance and easy install on my 2011 f150 5.0
Review: Fixed the whistle on my 2018 f150 5.0L, that in and of itself makes this a 5 star purchase. Won't fit along with a cold air filter, not enough room between the intake and the coolant resivoir to fit both, Atleast it didn't fit for me. Quality seemed good, came with everything you need. If your having the same issue with your 5.0L make sure you install this backwards with the intake arrow pointing out not in like the instructions say.

## Features

- PowerAid; Throttle Body Spacer
- PowerAid; Throttle Body Spacer; Easy To Install w/Basic Hand Tools;
- Improves Low End Torque And Throttle Response
- Maximize Fuel Efficiency
- Made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00AUFOC36 |
| Best Sellers Rank | #1,510,469 in Automotive ( See Top 100 in Automotive ) #156 in Automotive Replacement Fuel Throttle Body Spacers & Adapters |
| Brand | Airaid |
| Customer Reviews | 4.4 4.4 out of 5 stars (118) |
| Date First Available | December 29, 2012 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12.7 ounces |
| Item model number | AIR-450-638 |
| Manufacturer | Airaid |
| Manufacturer Part Number | 450-638 |
| Model | Airaid 450-638 |
| OEM Part Number | 450-638 |

## Images

![Airaid 450-638 Throttle Body Spacer - Image 1](https://m.media-amazon.com/images/I/61TboyPNDHL.jpg)

## Questions & Answers

**Q: Would this fit a 2008 ford crown Victoria  Police interceptor**
A: No

**Q: I had one of these on my 2005 mustang and i now have  2015 mustang gt.  will this fit and work for the 2015 mustang?**
A: Hi Elaine. Yes this throttle body spacer will work on a 2015 Ford Mustang GT. I recently installed one on mine in about 45 minutes or so. Good luck.

**Q: What Intakes fit with this on a 2016 f150?**
A: it's for 5.0 engine works perfect !!

**Q: Will this fit a 2019 5.0 F150?**
A: It did not work on my '17 F150/5.0 even though it stated it would....  Should be a similar fitment to a '19.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***A on 15 September 2025*

Improved performance and easy install on my 2011 f150 5.0

### ⭐⭐⭐⭐⭐ Review
*by D***R on 4 August 2019*

Fixed the whistle on my 2018 f150 5.0L, that in and of itself makes this a 5 star purchase. Won't fit along with a cold air filter, not enough room between the intake and the coolant resivoir to fit both, Atleast it didn't fit for me. Quality seemed good, came with everything you need. If your having the same issue with your 5.0L make sure you install this backwards with the intake arrow pointing out not in like the instructions say.

### ⭐⭐⭐⭐⭐ Review
*by 1***T on 8 June 2019*

GREAT SPACER. EASY TO INSTALL. CAN TELL A DIFFERENCE IN LOW END TORQUE. HELPED WITH GAS MILLAGE. WENT ON 2018 5.0 F150.

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-03*