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Airaid PowerAid Throttle Body Spacer (99-04 GT)

Item 52218
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$140.07 (each)

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      Review & Installation Video

      Justin from, we're here with Chris Thompson from Airaid. He stopped by the shop to tell us a little more about these great Airaid products. We're very familiar with Airaid; we use them on our project cars with great success. Chris, what can you tell us about Airaid that makes it so unique? "Everything we do is digitally designed. It's engineered to fit, it's engineered to work, it's engineered to work without any special tuning. Now, tuning is much, much better. You guys offer a lot of great choices in aftermarket tuning. It'll only enhance the performance of the Mustang. We design our intakes so there's no special gluing required, there's no cutting or hacking of the engine required. If somebody decided to put a stock intake back on, they don't have to go back to Ford to buy another part to put the piece back on. Every intake we do is digitally designed. It's all about the design of the airflow and the linear charge to the throttle body. We use the rotational molding not so much for the heat soaking, but for the shape of the tube we can come up with. By using the rotational molding, it allows us to really give the right shape and form to make sure the product works well." We're very excited—we've got our 2013 Mustang here, probably not even 10 miles on this thing yet, and we already have an Airaid intake on it. Tell us a little more about that. "This is awesome. We're really excited to be here today. This is the first Airaid intake on a 2013 Mustang. We're really excited to be here with you guys. As you can see it fits. We know for sure it fits. We believe we have a hit. We'll do a little bit more testing on it before we release it to the public, but that should happen anytime now." Now, you were telling me earlier, you're working with some legends in the Mustang world. "Well, we're excited about working with Parnelli Jones and his son PJ. Parnelli's been instrumental in helping us come along with the Boss 302 intakes we're trying to develop. Nobody knows the heritage of the Boss 302 better than Parnelli Jones. We worked with PJ on the side by side utility vehicles (Razors, Rhinos, and TRX's). We also sponsored him in the past on his endeavors in the American Le Mans Series, which he ran last year." Chris, thank you so much for educating us on your great Airaid products. And as always, you can find those great Airaid products right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • The Sound of Power... the “Whistle” Means Its Working!
      • Improves Throttle Response and Low End Torque
      • Improves Fuel Economy
      • Unique "Helix Bore" Design
      • Red Anodized Billet Aluminum
      • CARB EO Number: D-609-3
      • Includes Hardware, Gasket & Instructions
      • Fits 1999-2004 GT Mustangs


      More Power, Better Throttle Response. This easy to bolt-on PowerAid spacer from Airaid was developed to improve throttle response and to unleash the hidden low to mid range torque from your Mustang's engine, with tremendous torque gains seen between 800 to 2500 RPM.

      Improve Fuel Economy. The Airaid Poweraid Throttle Body Spacer not only improves the power and performance of your Mustang, but with its unique “Helix Bore” design it also maximizes fuel efficiency saving you money at the gas pump. The Helix Bore creates a spinning action to the incoming air to provide superior atomization of the air fuel mixture for better combustion.

      Billet Aluminum Construction.
      CNC machined from the highest quality aircraft grade 6061-T6 billet aluminum the Airaid Poweraid Throttle Body Spacer is anodized in a red finish for great under styling and includes all the necessary hardware and instructions for a simple straightforward installation.

      CARB Certified. Best of all this Airaid Throttle Body Spacer is 50-state smog legal under Carb EO# D-609-3.

      The Airaid Poweraid Throttle Body Spacer is designed to fit 1999 to 2004 4.6L GT Mustangs with a factory throttle body still installed.

      Note: Coupon codes cannot be applied to this product.

      Fitment: 1999 2000 2001 2002 2003 2004 Details

      MPN# 400-524

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (29)

      Write a Review

      Ratings Summary

      4.3 out of 5 overall rating from 29 customers

      Installation Time: Less than 1 Hour

      • October 26, 2018

        1 2003 GT - TBONE

        Will not fit 75mm tb blade too big

        Bought this to compliment my BBK 75mm throttle body and the throttle body blade is too big for the hole in the spacer. Will not open the blade hits the edges of the spacer. ONLY WORKS WITH STOCK THROTTLE BODY. Very disappointed !

        Helpful (7)
      • May 11, 2018

        5 2014 GT - GermanZ Installation Time: Less than 1 Hour

        Amazing part

        Such an amazing part to install, it does make a whistle sound and also you can feel the throttle response would most definitely recommend this part too bad i had to get rid of the 2000 Mustang that i owned but it did sound amazing

        Helpful (5)
      • April 12, 2018

        5 2002 GT - JasonV Installation Time: Less than 1 Hour

        Nice add on. Looks sharp

        I added this spacer at the some time I installed a AIRAID CAI. Love the combination of the 2.

        Helpful (5)
      • March 23, 2018

        4 2004 GT - Mutt Installation Time: Less than 1 Hour

        I like it

        Nice little piece to install for looks and performance. The throttle response is so much better. I am a little disappointed I don't hear the the whistle, but that's no big deal.

        Helpful (5)
      • December 14, 2017

        5 1999 GT - joser56 Installation Time: Less than 1 Hour

        fast and easy

        plain and simple!! quick install!! love the whistle

        Helpful (6)
      • September 30, 2017

        3 2002 GT - BobbyK

        Great product

        But I can not use it. I have a after market throttle body

        Helpful (9)
      • July 17, 2017

        4 2000 GT - JayRL Installation Time: Less than 1 Hour

        Give me space

        The product works like it says very responsive even though my mustang not nearly where it needs to be this product is a definite upgrade

        Helpful (7)
      • September 09, 2016

        5 2001 GT - TheDr


        Install was very easy just follow the instructions carefully and you should have zero issues. The sound is by far the best part of this product. I absolutely love the sound but there are no noticeable changes in power, slight change in throttle response. All in all for sure buy this product it is well worth it. I did come into one issue was one of the hoses connecting to my intake became to short after the spacer went in. A little tape made it to auto shop where they didn't charge me for the hose.

        Helpful (9)
      • July 14, 2016

        5 2002 GT - Manzy

        Great sound and performance

        Better throttle response and who doesn't love that whistle

        Helpful (5)
      • May 02, 2016

        5 2003 GT - burton406 Installation Time: Less than 1 Hour

        Worth it!

        Definitely one of the cheap bolt ons that you can actually tell the difference in low end power. The sound is just a bonus!

        Helpful (6)

      Questions & Answers (19 answers)

      5 Top Rated Questions

      how much of a power gain will this spacer give a stock 4.6L ?

      • Spacers vary on the application, the claim to fame is circling air compresses better this more air=more power. throttle body give a neat little whistle when you push the throttle, but as far as power it will be minimal, max 8-10 hp, one thing to be happy about i have seen on more than one occasion 1-3 MPG increase, so all in all that can pay for itself over time

      Helpful (2) Show 2 more answers

      will this spacer fit with an accufab 75mm throttle body ?

      • This throttle body spacer is intended to be used with the stock throttle body only. It complements the stock bore (mm) sizing. An aftermarket throttle body would have a larger bore size, the Accufab being 75mm for example, and the spacer would actually decrease potential power gains! If you have the upgraded throttle body, you wouldn't need this spacer.

      Helpful (1)

      Why will it not fit a 96-98 gt?

      • The only one available for a 96-98 GT is

      Helpful (0)

      Will this have any gain with a K N drop in cone filter with stock intake and TB? Also, will a strut tower bar fit with this spacer installed?

      • You shouldn't find any issues in terms of fitment of a strut tower brace with this spacer involved. You will certainly see gains as well, however the more bolt on performance modifications you have, the less this spacer will actually offer gains quite simply due to it being outperformed. I also need to confirm that this is specifically designed to work with a stock throttle body so it will not work with an aftermarket throttle body. I would suggest getting a throttle body upgrade over this piece if you plan on sticking on as many bolt ons as possible.

      Helpful (0)

      I saw the video and i heard its meant to fit the factory throttle body. My Mustang is a 2000 4.6L GT and I bought it with a BBK throttle body install in it will it be able to fit or would I have to get myself a factory throttle body?

      • Aftermarket throttle bodies will not work with this unit as it is designed specifically to use with the stock throttle body.

      Helpful (0)
      Post Your Question
      10 More Questions
      Will this spacer fit with the JLT Performance Next Generation Cold 1 answer
      Is this California smog legal? 1 answer
      Would this part fit an upgraded 70mm TB? 1 answer
      Will this fit on a 04 mach 1? And if i upgrade to a 65mm throttle body will it fit that as well? 1 answer
      Is it better to use this spacer or upgrade to a bigger throttle body? 1 answer
      Why wouldn't it fit a 96 to 98 GT? 1 answer
      i have installed a 73mm throttle intake and took out factory 56mmintake from my 2003 mustang gt will it work with it or no? if not do you sell one that will work with the 73mm throttle intake? 1 answer
      What is the diameter of the bore for this product? 1 answer
      I know it says 99 to 04 but will it fit 96 1 answer
      is it good or bad to use this spacer with bbk 70mm TB? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Poweraid Spacer
      • (2) Fiber Gaskets
      • (4) Bolts
      • (4) Lock Washers
      • (2) Flat Head Screws
      • (1) Linkage Bracket

      Tech Specs

      Will It Fit My Mustang

      • GT - 99, 00, 01, 02, 03, 04

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