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FAST Big Mouth Billet 87mm Big Mouth Throttle Body for Ford Coyote


Fuel Air Spark

Model #54086

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These throttle bodies offer increased throttle blade thickness to eliminate deflection commonly found with other throttle bodies, especially those used in boosted applications. A smoother operating offset blade pivot improves throttle response, while a beefed up linkage and dual throttle spring mechanism ensure total throttle control. Constructed from billet aluminum, the FAST Big Mouth LT for Ford Coyote and Chrysler Hemi applications are new and improved versions of the original Big Mouth Throttle Body. With an 87mm throttle bore for the Ford Coyote and Chrysler HEMI, each one features a black-wrinkle powder coating and all of the same features as the original.

Our Big Mouth 87mm Throttle Body for Ford Coyote features a black wrinkle powder coating finish along with an improved throttle blade and pivot. In addition, our throttle body improves throttle response and eliminates blade deflection.


  • California Proposition 65: WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
  • Title: Big Mouth Billet 87mm Big Mouth Throttle Body for Ford Coyote
  • C.A.R.B. Exempt?: No
  • C.A.R.B. EO Number: N/A
  • Does not include TPS or IAC. See 54087 for throttle body that includes TPS and IAC.


Universal Fitment: These products should work with your vehicle as they are universal for fitment. We do recommend the customer researches and does due diligence regarding application. This should help confirm that this will work for your vehicle.

Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm


Who is FAST?

FAST, also known as Fuel Air Spark Technology, is a company that started back in the 1990s. The company produces aftermarket electronic fuel injection components for the automotive industry. Over the years, FAST produced high-quality parts that enthusiasts use for all types of vehicle application. Today, they are recognized as the industry leader when it comes to their market segment.

EFI Innovator

Over the years, FAST developed and produced innovative products that helped revolutionize the aftermarket EFI sector. Not only did they help improve it but also it gave the people the chance to have full control over a system that was initially thought to be un-tunable.

Growing Even Better

In 2001, FAST joined the COMP Performance Group. This allows them to have access to better resources which help the company grow even better. They are able to enhance their Research and Development Department, helping them create parts that adapt to fast-changing trends of automotive technology. FAST is also dubbed as the fuel injector innovator and helps shape the industry as we know it. 

EFI Experts

The company offers a wide range of products ranging from self-tuning and programmable EFI systems, billet throttle bodies, polymer intake manifold, high-pressure fitting and EFI tuning tools. Their goal is to provide the best fuel injection experience to their customers by bringing the technology from the racetrack to the streets.

Purchase FAST Products At Vivid Racing

If you are in the market for high-quality EFI system components, then FAST is the brand for you. For more than 30 years, they have given quality parts that help their customers enjoy their vehicle better. To know more about FAST, visit Vivid Racing and check out the list of products that fit your specific needs.


FAST® warrants that its EZ-EFI® products are free from defects in material and workmanship for the lifetime of the product. This Limited Lifetime Warranty shall cover only the original purchaser. All other FAST® products are covered by a Limited Warranty which covers defects in material and workmanship for a period of one year from the date of purchase.

FAST's obligation under this warranty is limited to the repair or replacement of its product. To make a warranty claim, the part must be returned directly to FAST® at the address listed below with a valid Return Merchant Authorization Number (RMA), freight prepaid. Items covered under warranty will be returned to you freight collect. To obtain an RMA, call 1-877-334-8355 to report the issue you are experiencing. At that time, FAST® will attempt to troubleshoot your issue.

    FAST® - Fuel Air Spark Technology™
    3400 Democrat Road
    Memphis, TN, 38118 USA

It is the responsibility of the installer to ensure that all of the components are correct before installation. We assume no liability for any errors made in tolerances, component selection or installation.

There is absolutely no warranty on the following:
Any parts used in racing applications or subject to excessive wear;
Any product used in marine applications, unless that product is listed by FAST® as a specific marine product;
Any product that has been physically altered improperly installed or maintained;
Any product used in improper applications, abused, or not used in conjunction with the proper parts.

There are no implied warranties of merchantability or fitness for a particular purpose.There are no warranties which extend beyond the description of the face hereof. FAST® will not be responsible for incidental and consequential damages, property damage or personal injury damages. Where required by law, implied warranties or merchantability and fitness are limited to terms outline above.

This warranty gives you specific legal rights and you may also have other legal rights which vary from state to state.

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