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Airaid PowerAid Throttle Body Spacer (99-04 GT)

Market Price $158.99 You Save 12% ($18.92)
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  • Item 52218
  • MPN# 400-524

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    Features, Videos & 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

    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?

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    Questions & Answers (16)

    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 (1) 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)

    Will this spacer fit with the JLT Performance Next Generation Cold

    • This spacer can be used with the JLT cold air intake. The spacer itself will sit behind the factory throttle body so you can essentially use any aftermarket cold air intake with it.

    Helpful (0)

    Is this California smog legal?

    • Yes, the Airaid Poweraid Throttle Body Spacer is smog legal! The CARB EO Number is D-609-3.

    Helpful (0)

    Would this part fit an upgraded 70mm TB?

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

    Helpful (0)
    Post Your Question
    10 More Questions
    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
    Will this work with the '01 Bullitt? Will this work with the '01 Bullitt? 1 answer
    Can you use this with the SR performance intake spacer as we'll? Or is it one or the other? 1 answer
    Is this a good alternative to a larger TB? I'm obviously interested in power, but also want the sound this makes. What would the difference in power be between getting this spacer vs a 70mm TB? Thanks! 1 answer

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    Customer Reviews (28) Write a Review

    Overall Rating 4.4

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Performance Gain 3.730769 3.7
    • Fit 4.807693 4.8

    • 5/5

      Installation Time: Less than 1 Hour

      May 11, 2018

      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


      Year: 2014 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      April 12, 2018

      Nice add on. Looks sharp

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


      Year: 2002 Submodel: GT

      Helpful (3)

    • 4/5

      Installation Time: Less than 1 Hour

      March 23, 2018

      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.


      Year: 2004 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      December 14, 2017

      fast and easy

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


      Year: 1999 Submodel: GT

      Helpful (3)

    • 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 (5)

    • 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 (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 (5)

    • 5/5

      July 14, 2016

      Great sound and performance

      Better throttle response and who doesn't love that whistle


      Year: 2002 Submodel: GT

      Helpful (3)

    • 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 (3)

    • 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 (5)

    • 5/5

      Installation Time: Less than 1 Hour

      December 30, 2015

      Great Product!! Easy Fit!! Sounds evil

      This is one of the easiest to instal products you can buy and has a mean sound. Whistles constantly. Would highly recommend this as an easy instal bolt on for anyone


      Year: 2004 Submodel: GT New Kent Virginia

      Helpful (3)

    • 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 (3)

    • 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 (6)

    • 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 (4)

    • 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 (5)

    • 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 (5)

    • 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 (4)

    • 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 (4)

    • 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 (3)

    • 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 (5)

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