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SR Performance Throttle Body Spacer (15-20 EcoBoost)

Item 389005
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    Features, Video & Details

    • Improves Engine Performance
    • Spiral Bore Design
    • No Tune Required
    • Billet Aluminum Construction
    • Simple Bolt-On Installation
    • Fits 2015-2020 EcoBoost Mustangs with Factory Throttle Body

    Review & Installation Video

    Review & Install Video

    The SR Performance throttle body spacer should appeal to the 2015 and newer EcoBoost owners out there who are looking for a super affordable and very easy to install modification that, according to the gang over at SR Performance, will help add more low-end power and maybe even a little bit better fuel economy to your EcoBoost-powered Mustang. Now the no-tune required modification is gonna run you right around 50 to 60 bucks, and the simple bolt-on installation will get a 1 outta 3 wrenches on the difficulty meter from me, with a little bit more detail to come later in the video. All right, but what do you say we address the elephant in the room here first, guys, right up front, and that is the fact that there will no doubt be some owners out there who have already made up their mind on this product and think it's BS or whatever, and that's perfectly fine. However, the overwhelmingly positive reviews on this spacer from owners who have actually pulled the trigger on this part and installed it, tell a completely different story. And listen, guys, at the end of the day, here is the deal. Are you gonna install this and pick up 10 to 20 wheel? Absolutely not. But smaller gains have been reported, again in the customer review section, in addition to slightly better fuel economy. So again, I really encourage you at least in this case here more specifically, to read up on those customer reviews before buying and get some real world feedback from, again, owners who have actually installed the part. And with that out of the way, let's get into the SR spacer a little bit further. And honestly, guys, the act of adding a spacer like this is nothing new in the world of hotrodding. In fact, guys have been adding plenum spacers to carbureted setups for decades now in an attempt to increase plenum volume and ultimately just add a little bit more horsepower. Now obviously the EcoBoost power plan is the furthest thing from a high ram with a four-barrel, but the idea kinda remains the same here, increase your plenum volume by installing the spacer between the throttle body and the intake manifold to squeeze just a little bit more power out of your setup. Now the spacer in this case is from SR Performance, traditionally a value brand, and that certainly is the case with this product as it will be one of your least expensive options in the category. Now construction-wise, guys, it's gonna be extremely basic, right? Billet aluminum construction here on the surface measuring about an inch to an inch and a half in overall width, and CNC machined into the shape or the final product that you see here. Now one thing about the spacer that it has in common with the rest of the options on the site is this kinda spiral design that's CNC'd into the actual spacer itself. And according to that guys over at SR Performance, it's gonna have more of an impact with your fuel economy as opposed to adding power per se. And according to those customer reviews, again it seems to work. In fact, a lot of our customers have reported back with a measurable increase or improvement in fuel economy after the spacer has been installed. So again, definitely check out those customer reviews. And speaking of that installation, very, very simple stuff here, guys, so let's call it 1 outta 3 wrenches on the difficulty meter, maybe 30 minutes to an hour of your time depending on how fast you like to work. Tool-wise, again, simple stuff here as well, including an 8 and 10 millimeter socket, along with a flat head and Phillips head screwdriver. Now depending on your intake situation, you might need to remove that airbox first in order to gain access to the throttle body bolts. At this point, you can remove the inlet tube connected to the throttle body using your socket set or screwdriver. Next, use your 8 millimeter socket to remove the four bolts securing the throttle body to the intake manifold. With the throttle body out of the way, you can install the spacer with the O-ring facing out towards the front end of the car. Reinstall the throttle body with the supplied new bolts here which are a little longer, being careful not to overtighten. Reinstall the inlet tube in the airbox and your installation is complete. So while the gains aren't exactly going to be earth-shuttering, a lot of EcoBoost owners have had a great experience with the throttle body spacer, especially given the low price. So be sure to check one out for your ride right here at

    Improve Engine Performance. Unleash your EcoBoost 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 turbocharged 2.3L 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 2015-2020 EcoBoost Mustang's equipped with the turbocharged 2.3L Inline 4-cylinder engine and the factory throttle body still installed. No tune required.

    SR Performance

    Fitment: 2015 2016 2017 2018 2019 2020 Details

    MPN# 389005

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Throttle Body Spacer/Gasket
    • (4) Bolts
    Installation Info
    Tech Specs
    Will it fit my Mustang?

      Customer Photos (18) Submit Your Photo

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        Questions & Answers (11)

        5 Top Rated Questions

        Would this throttle body spacer void my warranty?

        • All warranty questions should be left for the dealer as the answer to this question has a lot of variance depending on many different variables.

        Helpful (4)

        are these legal in California

        • Unfortunately, the SR Performance Throttle Body Spacer does not have a CARB EO number and is not legal for use in emission restrictive states like California.

        Helpful (1)

        I got roush intake Will this fit?

        • This will fit as long as you have the factory throttle body.

        Helpful (0)

        Would this improve my acceleration?

        • Generally speaking, this will improve acceleration.

        Helpful (0)

        Will this fit a 15 v6?

        • The SR Performance Throttle Body Spacer will only fit Ecoboost models and will not fit the V6.

        Helpful (0)
        Post Your Question
        6 More Questions
        Will this work with the Ford Performance throttle body? 1 answer
        Will this work with the Airaid cold air intake system? 1 answer
        What would you recommend between the SR Performance and the Steeda throttle body? 1 answer
        how much horsepower will it increase? 1 answer
        What us the torque value? Instructions just state “xxftlbs”. 1 answer
        This came with a blue filter like paper in the package, where does this go in the install and if I leave it out, would that cause the check engine light to come on after installation? 1 answer

          Customer Reviews (59) Write a Review

          Ratings Summary

          4.6 out of 5 overall rating from 59 customers

          Installation Time: Less than 1 Hour

          • November 12, 2019

            5 2019 EcoBoost - Gareth Installation Time: Less than 1 Hour

            Throttle body spacer

            This was a worth while product for the 50 dollars you spend on it. Easy installation and a noticeable gain.

            Helpful (0)
          • October 09, 2019

            5 2015 EcoBoost - Samson305 Installation Time: Shop Install

            Noticeable Difference

            Definitely a bump in MPG. Very much worth the investment

            Helpful (0)
          • August 24, 2019

            4 2017 EcoBoost - CarsonF Installation Time: Less than 1 Hour

            Great and Affordable!!

            Install was very easy and only took like 15-20 mins. I could definitely feel a slight increase in acceleration in the lower RPMs! Only reason I put 4 stars instead of 5 is because it does not come in other colors, other than that I highly recommend!!!

            Helpful (1)
          • August 17, 2019

            5 2016 EcoBoost - MeghanK Installation Time: Less than 1 Hour


            nice product does what its supposed to do inexpensive add on

            Helpful (0)
          • August 10, 2019

            4 2019 EcoBoost - Saleen9165 Installation Time: Afternoon

            Quality construction

            I bought this because it was cheap and I figured while it may not help, it wouldn't hurt either. Installation took nearly 2 hours because it required the removal of my MAP Cold Air pipe, and that thing is an unmitigated NIGHTMARE to get the filter back on. Had it not been for that, I would have had the whole thing done in less than 45 min. I've tried products similar to this in the past which seem to be designed to create a "swirl" in the airflow. Never did I see an increase in performance or mileage, but I don't ever recall a decrease either. We will see if this one surprises me like the rest of the car has so far. I still can't believe this 4 cyl turbo pulls like it does and I don't even have a tune on it yet.

            Helpful (1)
          • July 31, 2019

            5 2018 EcoBoost - AnthonyM Installation Time: Less than 1 Hour

            An improvement!!

            I got better throttle response. My gas mileage is more consistent!! Don't get me wrong, I open it up every now and again!! But, reasonably driven, awesome results. Thanks, American Muscle!

            Helpful (1)
          • July 10, 2019

            5 2018 EcoBoost - McB Installation Time: Less than 1 Hour

            Excited to see if it works!

            Install was super easy. Excited to see some of the small gains others are talking about.

            Helpful (0)
          • June 10, 2019

            4 2017 EcoBoost - S550Austin Installation Time: Less than 1 Hour

            Extra mod just cause

            Nice little mod not very noticeable but would add great with a 65 or 70mm throttle body

            Helpful (0)
          • May 25, 2019

            5 2017 EcoBoost - 17ecoboost Installation Time: Less than 1 Hour

            Excellent product

            Cheap bang for your buck mod. Throttle response seemed quicker on take off and did notice a small increase in mpg. Definitely worth the money

            Helpful (0)
          • March 18, 2019

            5 2016 EcoBoost - Davis Installation Time: Less than 1 Hour


            Quality is real nice, looking at other price points on the website I went for the most economy choice. Comes with gasket and 4 bolts, easy install took about 15 min. With removal of the intake air box. I see just a little economy gains about 1-3 miles per gallon from my average, can't complain from before. Overall a good buy.

            Helpful (0)
          • March 16, 2019

            5 2016 EcoBoost - CarlosD Installation Time: Less than 1 Hour

            BANG FOR YOUR BUCK

            Looks Great took me about 5 minutes to install it’s really solid

            Helpful (0)
          • February 15, 2019

            5 2018 EcoBoost - EzequielL Installation Time: Less than 1 Hour

            SR Performance Throttle Body Spacer

            Looks great. Solid build. I noticed hp gain and better performance in gas mileage. Great product!

            Helpful (0)
          • January 28, 2019

            5 2017 EcoBoost - KoryF Installation Time: Less than 1 Hour


            Was easy to install looks good works great took 10 min to put it in

            Helpful (0)
          • January 23, 2019

            5 2018 EcoBoost - PeterK Installation Time: Less than 1 Hour

            Good Value

            very easy to install, throttle response has a little more snap, the car feels quicker

            Helpful (0)
          • January 19, 2019

            5 2016 EcoBoost - WilliamR Installation Time: Less than 1 Hour

            SR TB Spacer

            The acceleration seems better and there is no whistle but I did install it with an SP Performance CAI. Overall I think you can't beat it for the money. appears to be the same as a Steeda but is much cheaper.

            Helpful (0)
          • January 13, 2019

            5 2018 EcoBoost - Curtis

            Throttle spacee

            Seems to be a good product. Have not checked the mileage comparisons yet but seemed to give the car a little more pep

            Helpful (1)
          • January 11, 2019

            5 2017 EcoBoost - stumkorean Installation Time: Less than 1 Hour

            Does what is advertised.

            Don't expect gains, don't expect some huge performance difference that you butt dyno will feel instantly. It does exactly as advertised, it marginally improves throttle response. I felt the price was worth it considering the ecoboosts' severe lack of throttle response.

            Helpful (1)
          • January 07, 2019

            5 2016 EcoBoost - DavidF Installation Time: Less than 1 Hour

            Gasket Placement

            Quality and Ease of Installation was very good with one exception. The issue I ran into was which side of the spacer is correct for the placement of the gasket. Logic aside, I was looking for direction in the instructions for this answer! It wasn't in the instructions and the AM expert wasn't sure? I installed it in the logical location between the throttle body spacer and the intake manifold. Worked perfectly without any issues with the check engine light coming on. The increase in performance got 2 "Holy Mackerel's" (not my exact words) from me with my first test drive. I can't yet say if I'll get better mileage, but for the money, I'm very pleased with the product.

            Helpful (1)
          • December 10, 2018

            5 2018 EcoBoost - AdamG Installation Time: Less than 1 Hour


            Easy to install. Noticed throttle response immediately at the lower RPMs. Happy with the purchase; especially at the price.

            Helpful (1)
          • November 24, 2018

            5 2018 EcoBoost - KevinG Installation Time: Less than 1 Hour

            Bang for your buck!

            Very easy install and it truly does make the car feel more responsive I love it!

            Helpful (2)

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