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Airaid Poweraid Throttle Body Spacer (99-04 GT)

Market Price $157.50 You Save 13% ($20.55)
Our Price

$136.95 (each)

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  • Item 52218
  • MPN# 400-524

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Features, Video & Details

  • 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

Review & Installation Video

Review & Install 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

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.

Application. 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

What's in the Box
  • (1) Poweraid Spacer
  • (2) Fiber Gaskets
  • (4) Bolts
  • (4) Lock Washers
  • (2) Flat Head Screws
  • (1) Linkage Bracket
Installation Info
Tech Specs
Will it fit my Mustang?
  • GT - 99, 00, 01, 02, 03, 04

People Who Bought This Item Also Bought

Most Helpful Reviews

Sounds Good

Easy to install and looks good. Throttle response is a little quicker and you can hear the air whistle every time your on the throttle. I really like it but understand this is a constent whistling, the ...

Read More
Helpful (5)

Not bad for the price.

This was a real simple install. Took me and my buddy a bottle and a half of beer. Has a sweat sound that is worth the price alone. Little better low end pull. Haven't really noticed any MPG increases but ...

Read More
Helpful (3)

Overall Rating 4.3 out of 5 stars
Read All 24 Reviews

Customer Photos (21) Submit Your Photo

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13 Questions / 8 Answers

Ask a Question

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


Show 2 more answers Helpful (1)

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)

Will this fit on a 04 mach 1? And if i upgrade to a 65mm throttle body will it fit that as well?


  • The Airaid Poweraid Throttle Body Spacer will not fit an 04 Mach 1. It will only fit a 99-04 GT with the factory GT Throttle Body.


Helpful (0)

Is it better to use this spacer or upgrade to a bigger throttle body?


  • That is more of a preference, more power can be gained with larger throttle bodies over a throttle body spacer.


Helpful (0)

Why wouldn't it fit a 96 to 98 GT?


  • Unfortunately, while this does have the ability to fit onto the manifold and throttle body of the 96-98 mustang GT, we cannot guarantee the fitment for anything other than the 99-04 mustang GTs.


Helpful (0)

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?


  • Unfortunately, the Airaid Poweraid Throttle Body Spacer is intended and designed to work with the factory 65mm throttle body meaning this will not work with the upgraded throttle body you currently have installed.


Helpful (0)

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Customer Reviews (24) Write a Review

Overall Rating 4.3

out of 5 stars

Installation Time:Less than 1 Hour

  • Performance Gain 3.681818 3.7
  • Fit 4.863636 4.9

  • 4/5

    Installation Time: Less than 1 Hour

    December 25, 2012

    Sounds Good

    Easy to install and looks good. Throttle response is a little quicker and you can hear the air whistle every time your on the throttle. I really like it but understand this is a constent whistling, the only time you dont hear it is when your not on the gas.


    Year: 2004 Submodel: GT Florida, USA

    Helpful (5)

  • 4/5

    Installation Time: Less than 1 Hour

    February 25, 2013

    nice low turbo sound at certain rmps

    spacer is nice quality made product, instructions are fairly easy but I an a mech. whistling noice is low and not enough to become annoying but, enough to get people asking what is that? haven't noticed a lot of power but, I have a lot of mods and need another tune with my bama chip to get full results..


    Year: 2002 Submodel: GT wytheville va

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    September 18, 2012

    Not bad for the price.

    This was a real simple install. Took me and my buddy a bottle and a half of beer. Has a sweat sound that is worth the price alone. Little better low end pull. Haven't really noticed any MPG increases but my right foot has been in it to hear that sweet whistle. For the price you can't go wrong. A heads up to you guys with a strut tower brace and an JLT intake. I had to trim the rubber pipe adapter that stems off the TB about an inch. The intake pipe just had to come over a bit to clear the bar. BUT IT WILL FIT!


    Year: 2004 Submodel: GT Las Vegas, NV, USA

    Helpful (3)

  • 5/5

    September 09, 2016


    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.


    Year: 2001 Submodel: GT

    Helpful (2)

  • 4/5

    Installation Time: Less than 1 Hour

    April 07, 2016


    I had hard time trying to decide whether to get it or not bcuz reviews on this are very mixed. But together with the airaid cai i believe they are a very nice mod and youll definitely gain some hp, especially in the lower rpm. So if you thinking bout getting one i would recommend you do.


    Year: 2004 Submodel: GT

    Helpful (2)

  • 3/5

    Installation Time: Less than 1 Hour

    September 11, 2013


    The look of the TB spacer is great and fits the style of my Mustang. I was surprised by how thick the spacer is, and i feel its a well made product. The fitment was excellent. I could of put this part on with my eyes closed. As for the instructions they were poor. I just looked at the paper, threw it down and got to work. I've seen some videos and photos of people putting the spacer on backwards. So, here's a tip one side is engraved with the letters and word "TB SIDE" this side is to be facing away from the engine. The performance gain if any can not be felt. This is one of those products that only show on paper (DYNO). I have not tested to see if there's a MPG gain, but I strongly believe it dose in fact have a small gain. Bang for your buck? Well, lets just say that this product is going to take more than a few tanks of gas to put a buck ten back in your pocket. Last but not least the sound of music. I'm infatuated with the sound this spacer makes. I wish the spacer constantly whistled, but it only sings when you give it a good amount of gas. Get this spacer if you want your car to sound great.


    Year: 2002 Submodel: GT Pasadena, CA

    Helpful (2)

  • 4/5

    Installation Time: Afternoon

    July 11, 2013

    airraid poweraide/sr intake spacer.....

    I ordered the airaid as well as a sr intake spacer...installation is fairly simple just takes a little patience...I was pleasantly surprised with the throttle response, mash the gas and it responded without hesitation...for an investment of $150 for both spacers my car picked a decent amount of power...and the whistle sound is cool too!!! nice job American Muscle.........


    Year: 2002 Submodel: GT maryland

    Helpful (2)

  • 3/5

    Installation Time: Less than 1 Hour

    May 04, 2013

    good look

    was kinda looking for the sound ( whistle ) all the reviews talked about the one i got is quiet as a mouse . I did tell a difference in throttle response .


    Year: 2001 Submodel: GT United States

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    February 15, 2013

    Excellent for the price

    Love the sound!!! Originally preferred the Throttle body/plenum combo, but for the price/gain ratio, this was more bang for my bux. Install was easy and you can hear the spacer working.


    Year: 2004 Submodel: GT Fort Worth, TX

    Helpful (2)

  • 4/5

    Installation Time: Afternoon

    January 18, 2013

    not bad

    Installed this throttle body spacer...didn't notice much power gain but did notice a little better throttle response..and it looks pretty cool under the hood...also make a cool whistle sound kinda like a turbo...


    Year: 2001 Submodel: GT ca

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    November 09, 2012

    Nice whistle sound

    Product fit in perfectly with BBK cai and sounds awesome wen you giv it som gas. Install was easy and I Lov the whistle sound sometimes even drive with the radio off just to get a good listen


    Year: 1999 Submodel: GT Los Angeles

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    May 02, 2016

    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!


    Year: 2003 Submodel: GT

    Helpful (1)

  • 4/5

    Installation Time: Less than 1 Hour

    July 29, 2015

    Easy to install, well made, last forever.

    It was very easy to install, it was very well made, it will last forever, I like the red aluminum color of the product, looks very good as a low cost modification. I would recommend this product to other muscle car owners.


    Submodel: GT Qualicum beach, British Columbia.

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 11, 2015

    GAS SAVER!!!

    I bought this and a SR cold air intake and installed them at the same time. I read a lot of reviews online with people saying that the poweraid is just a paperweight or a noise maker.... I definitely disagree, I'm not saying I actually felt a performance gain between the two but I did notice not having to push the pedal quite so hard to go up hill... I mostly got this and the CAI to try and compensate mpg for the 3.73 gears which actually does have a performance gain. I'm still getting on average 23...ish mixed mpg so I am definitely happy. Overall I would recommend the Airaid Poweraid throttle body spacer, and it does have a noticeable whistle at first but now I don't even pay attention to it(kind of like a koo koo clock)..


    Year: 2003 Submodel: GT Benton, AR

    Helpful (1)

  • 4/5

    Installation Time: Less than 1 Hour

    December 31, 2013

    Nice simple bolt on.

    5 extra horsepower, easy installation, good fit. A little pricey, but worth it.


    Year: 1999 Submodel: GT Staten Island, NY, USA

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    May 05, 2013

    Very nice addition

    Easy install...nice fitment...moderate power gain...very nice sound! I love the look under the hood. I added this to my SR CAI to make for a nice throttle response and power gain for the price. I am not mechanically inclined, however this was an easy addition. I later added the SR plenum spacer see my review there.


    Year: 2003 Submodel: GT Hallsville, TX 75650, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    March 15, 2013

    Just the best

    These is a great looking under your hood and inprove relly food but thes best of all a this is the witle soun like u hve a turbo and you will notice a good diference in the power i u you replece yor throttle bady makes a big big diference and yes i do recomend it


    Year: 2003 Submodel: GT California, USA

    Helpful (1)

  • 3/5

    September 30, 2017

    Great product

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


    Year: 2002 Submodel: GT

    Helpful (0)

  • 4/5

    Installation Time: Less than 1 Hour

    July 17, 2017

    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


    Year: 2000 Submodel: GT

    Helpful (0)

  • 5/5

    July 14, 2016

    Great sound and performance

    Better throttle response and who doesn't love that whistle


    Year: 2002 Submodel: GT

    Helpful (0)

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