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SR Performance Throttle Body Spacer (11-20 GT)

Item 41338
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      Review & Installation Video

      The SR Performance throttle body spacer is available for any 2011 and newer Mustang GT owner, who might be looking to increase their plenum air volume to improve their air/fuel mixture and engine combustion, basically, leading to a more efficient motor. Now, the install for this goes directly on top of your factory throttle body as a direct bolt-on, so we'll be giving it a one out of three wrenches on our difficulty meter. So expect more details later on. Adding a spacer like this to your throttle body basically just speeds up and increases the volume of air going to your plenum and manifold. Now, you may see small gains in fuel efficiency, and maybe even small, single-digit horsepower and torque number increases. But mainly, the big thing here is air optimization. Now, the spiral bore design you see inside the spacer here will actually help to thrust and spin the air going through the throttle body into the plenum, which is basically going to up that volume I just mentioned a second ago. Now, this is very unique to the SR Performance option here. Now, the other options on the market just use a solid inner circle, which may not be effective in this aspect. Now, that also causes a slight whistle sound under your hood, which basically just lets you know that it's getting the job done. This was CNC-machined from a high-quality billet aluminum, very durable stuff, and it has that brushed aluminum finish on top. It comes with everything you need to get the job done, including the four bolts, spacers, and the gasket you need to get it on that throttle body. Now, with that said, this is a great alternative, for just about $100, to a full throttle body, which you might not be ready to jump right into. With that said, if you have a bolt-on motor, you would definitely reap the benefits more from a full throttle body replacement, whereas this is for a stock motor mod. This one absolutely gets one out of three wrenches on our difficulty meter. I'd say a ratchet and socket set, and even a flathead screwdriver will absolutely get the job done here. All you'll need to do is use that flathead to unclamp, basically, the coupler on the factory throttle body to gain access more easily to the bolts available. Now, use that ratchet and socket set to remove the factory bolts and pull the throttle body off of the plenum a little bit easier. Once that's taken care of, you can slip the spacer in between the throttle body and the plenum, and use the new bolts in order to bolt it down properly. Once those are taken care of and the gasket is into place, you are good to go. That just about does it for me. If you're the owner of a 2011 or newer Mustang GT, you might want to check out the SR Performance throttle body spacer, which you can find right here at

      Product Information

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


      • Improves Engine Performance
      • Spiral Bore Design
      • No Tune Required
      • Billet Aluminum Construction
      • Simple Bolt-On Installation
      • Fits 2011-2020 GT Mustangs with Factory Throttle Body


      Improve Engine Performance. Unleash your GT Mustangs hidden power with a SR Performance Throttle Body Spacer. The SR Performance throttle body spacer increases plenum volume to improve the low to mid range torque from your Mustang's stock 5.0L engine, with noticeable gains seen between 800 to 2500 RPM.

      Better Fuel Economy. The SR Performance Throttle Body Spacer not only improves the performance of your Mustang, but with its unique “Spiral Bore” design it also improves fuel efficiency. The Spiral Bore "spins" the incoming air for improved atomization of the air fuel mixture for better combustion.

      Billet Aluminum Construction. CNC machined from high quality billet aluminum the SR Performance Throttle Body Spacer includes all the necessary hardware required for a simple straightforward bolt-on installation.

      Application. The SR Performance Throttle Body Spacer is specifically designed to fit the 2011-2020 5.0L GT Mustangs with a factory throttle body installed. No tune required.

      SR Performance

      Fitment: 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Details

      MPN# 41338

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.4 out of 5 overall rating from 100+ customers

      Installation Time: Less than 1 Hour

      Installation Cost: 0-$100

      • March 17, 2020

        5 2012 GT - JulioM Installation Time: Less than 1 Hour

        perfect fit.....

        Install was a breeze... everything fit perfectly, fit the cold air intake like glove.

        Helpful (0)
      • March 11, 2020

        4 2019 GT - Landry Installation Time: Less than 1 Hour

        Throttle Body Spacer Installation

        Simple installation fitment was great. Un-clear on any performance gains.

        Helpful (0)
      • March 03, 2020

        5 2018 GT - Jo Installation Time: Less than 1 Hour

        It is okay

        It is ok there is a slight difference it is worth the price.

        Helpful (0)
      • February 22, 2020

        5 2019 GT - ChristopherR Installation Time: Less than 1 Hour


        I waited to install with my CAI. And after reading comments I was a little concerned. I’ll be the first to tell you I was not disappointed. I used this spacer with an Airraid CAI and the throttle response was amazing and definitely puts your head into the seat. I do notice the ‘whistle’ sound

        Helpful (0)
      • February 18, 2020

        3 2012 GT - SPacer Installation Time: Less than 1 Hour

        It did add a nice soft windy sound, got a couple comments thinking it was boosted LOL, but not too much difference in performance, i was expecting the throttle a little bit more sensitive.

        Helpful (0)
      • January 03, 2020

        3 2013 GT - CadeAW Installation Time: Less than 1 Hour


        I don't think it adds any horsepower if it does it adds like one but it makes a cool whistling sound so I guess it was worth the 40 dollars.

        Helpful (1)
      • December 26, 2019

        5 2018 GT - DeanH Installation Time: Less than 1 Hour

        More Low End Punch

        Pros: more torque in low RPMs, easy 20 minute install (I do not have engine cover installed), quality construction Cons: price, have not noticed any increase in MPG

        Helpful (0)
      • December 26, 2019

        4 2014 GT - 1Stang4 Installation Time: Less than 1 Hour

        Was on sale...

        Got this only because it was on sale. I noticed no difference in sound or performance.

        Helpful (1)
      • December 11, 2019

        3 2017 GT - RonaldB Installation Time: Less than 1 Hour

        Seems to work

        I was a little sceptical about ordering one of these as I was not a believer they made any difference, being the price was reasonable and after reading the reviews I decided to pull the trigger, after a very easy installation the throttle does seem to be a bit more responsive nothing else however was noticed, will monitor fuel consumption and see if that changes

        Helpful (0)
      • December 07, 2019

        5 2011 GT - TODDH Installation Time: Less than 1 Hour

        Bang for the Buck

        A nice piece with quality machining. Easy to install with a nice low end feel and gain.

        Helpful (0)

      Questions & Answers (26 answers)

      5 Top Rated Questions

      Hi, I've read all the reviews about the product and I'm confused, some say It improves performance and sounds great and some say the opposite. I know It's a cheap mode, but for me (in Spain) customs are expensive, so, honestly , it's worth it or not? I dont expect a supercharger improvement of course. Thanks in advance.

      • Throttle body spacers are great for increasing fuel economy, adding additional volume to the intake, and crating additional power. However, throttle body spacers will generally only add about 5+ HP at most. if you are looking for quick, easy power, a throttle body spacer will be for you. If you are looking for a little extra power, I would recommend investing in a cold air intake, throttle body, or tuner.

      Helpful (5)

      Would this fit with the K N Air Charger Cold Air Intake installed?

      • The SR Performance Throttle Body Spacer (11-17 GT) will fit with this cold air intake or any other cold air intake.

      Helpful (4)

      Compared to the Airaid how thick is this spacer?

      • Both throttle body spacers are essentially the same size in terms of how thick they are. They just have slightly different designs due to the different brands.

      Helpful (3)

      Will this product fit with a bbk 90mm throttle body spacer

      • No. Throttle body spacers are for stock throttle bodies. The idea is they are the cheaper/easier option if you want better throttle response but can't afford/don't want to deal with the hassle of a new throttle body. An aftermarket throttle body will always give better gains but a spacer is better than nothing.

      Helpful (3)

      Since this product is spiraled does it have to be installed in a certain direction, I have not seen anything relating to this or can it be installed backwards.

      • This product does not need to be installed in a certain direction.

      Helpful (2)
      10 More Questions
      Will this fit a 2011 GT with a Boss 302 Intake? 3 answers
      The spacer comes with (1) gasket. Is the existing throttle body gasket typically reusable? 1 answer
      G'day, This may seem like an odd question...but...if two of these spacers were stacked between the throttle body and the inlet manifold, longer bolts installed to cover the distance, would there be a multiply increase over one spacer? 1 answer
      It says it fits factory throttle bodies. What other throttle bodies would it work on other then factory? Would it work on the 90mm TB? 1 answer
      Will using this spacer cause any sort of clearance issues with an Airaid CAI? 1 answer
      Affect Bama tune/Airaid setup? While there is no tune "required" for stock intakes, would this have any affect on a GT already setup with Bama/Airaid combo? 2 answers
      Would there be any benifits to stacking two of these together? Would I get double the air velocity? 2 answers
      Is this emissions legal in California? 1 answer
      Is there a proper orientation for this spacer? 1 answer
      Does this come with gaskets? Or do you have to make them yourself? 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Spacer
      • (1) Gasket
      • (4) Bolts
      • (4) Flat Washers

      Tech Specs

      Will It Fit My Mustang

      • GT - 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

      Intended for use with the factory throttle body.

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