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BBK 75mm Throttle Body (96-04 GT)

Item 56003
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      Review & Installation Video

      Hey guys, I’m Justin with, and today I have two different throttle body options from BBK Performance. I’m taking a look at the 70 and 75mm throttle body for the 4.6L V8 found in all 96-04 Mustang GTs. BBK is one of those companies that lives and dies on Mustangs and late model EFI performance, and it shows with all their quality parts, including these throttle bodies. Now both of these options would be a huge upgrade over the ultra restrictive 56mm factory throttle body. Now depending on your setup either the 70 or 75mm throttle body might work out a little better for you, but that all depends on your mods. The 70mm version will be great for those of you with mild bolt-ons, you know, intakes, header, exhaust, those sorts of things. Now this would be a great complement to those mods, and free up any additional power being held back by an ultra restrictive factory throttle body. The larger 75mm version is geared towards more of a radical setup – big cams, nitrous, high compression or forced induction, that would need maximum airflow. Both of these throttle bodies are CNC’d from high quality aluminum alloy and feature beefed up components that will only add to the longevity and quality of these throttle bodies. Neither of these throttle bodies require a tune but it’s always recommended to make the most out of any additional mods. Installing these new throttle bodies is very straight forward and should only take you about an hour. All you have to do is remove the factory throttle body, transfer the TPS sensor over to the new BBK throttle body, using the included gasket. After that, reinstall the new BBK throttle body and you should be good to go. So if you're looking for more ways to help your 2 valve 4.6 breath a little easier, and you've already taken care of the basics, then you'll definitely want to check out these throttle bodies from BBK Performance.

      Product Information

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


      • Gain Up to 12 HP.
      • Improves Throttle Response.
      • Great for Modded and FI 'Stangs.
      • Lightweight Aluminum Construction.
      • Bolt-On Installation.
      • Fits 96-04 GT Mustang.
      • CARB EO Number: D-245-15 (1996-2001 Only)


      Gain Up to 12HP. If you have a forced induction setup in your Mustang GT but are still running a stock throttle body, you're choking your performance Pony where it matters most. Unlike your restrictive factory throttle body, a free-flowing BBK throttle body will let your engine breathe deeply for maximum power.

      75MM Bore. Your stock throttle body is a restrictive 56mm, choking off airflow and keeping your Mustang from giving you all its got. This BBK throttle body features a generous, free flowing 75mm single bore design that is perfect for modified and forced induction applications.

      CNC Machined Aluminum. BBK's throttle bodies are cast from high quality, lightweight 356 aluminum alloy that is finished using CNC machining to ensure a precision fit. They feature double-sealed bearings, o-ringed throttle shafts, and precision die-stamped linkages to ensure a long life and maximum performance for your Pony.

      Bolt-On Installation. The BBK Throttle Body is designed for a straightforward installation and includes all necessary hardware. It is designed to reuse the factory throttle body gasket for an easy installation.

      Application. This BBK 75mm Throttle Body is designed for the 1996 to 2004 Mustang GT with the 4.6L engine.

      Technical Notes. This BBK throttle body is CARB certified (CARB EO Number: D-245-13) and 50 state legal. 70mm throttle body pictured. Recommended for heavily modified GT's only; mildly modded and stock GTs should choose the BBK 70mm throttle body instead.

      Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

      MPN# 1701

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (25)

      Write a Review

      Ratings Summary

      4.9 out of 5 overall rating from 25 customers

      Installation Time: Less than 1 Hour

      • February 13, 2019

        5 2004 GT - MarioF Installation Time: Less than 1 Hour

        BBC 75mm

        Nice, you feel the difference High recommended to everyone

        Helpful (3)
      • August 16, 2018

        5 1997 GT - Antonio Installation Time: Less than 1 Hour

        Best performence throttle

        I recomend you can tell the difference specially when u tune it. Its great with 4.10s] I have the 75mm throttle with a 75mm trickflow

        Helpful (6)
      • January 07, 2018

        5 2003 GT - DavidB Installation Time: Less than 1 Hour

        BBK 75mm throttlebody

        Awesome fit, look, and Performance. 15 minutes to install.

        Helpful (8)
      • June 30, 2017

        5 1991 GT - RobertM


        perfect never go wrong with bbk now my supercharger gets the air it needs

        Helpful (7)
      • June 19, 2017

        5 2004 GT - KevinA Installation Time: Less than 1 Hour

        Good looking and easy install

        Easy install great way crank out some extra hp. Looks way better than the stock throttle body.

        Helpful (7)
      • February 10, 2017

        3 2004 GT - JonT Installation Time: Less than 1 Hour

        bbk 75mm

        It works perfect, i even got a tune for it and it sounds pretty good, i was kinda stuck when i was putting on the throttle cable in the hole, it didn't line up right but i got it to with a screw driver and a little moving around

        Helpful (9)
      • August 07, 2016

        5 1997 GT - JonathanR

        Great buy

        Really feel a deference in the throttle response and a small boost of power in the higher end.

        Helpful (11)
      • September 20, 2015

        5 1999 GT - BG Installation Time: Less than 1 Hour

        99 gt

        Easy fit all parts necessary were in package woke up my 4.6 a little bit ive got it paired up with bbk cai and flowmaster exgaust i can feel the improvements in my acceleration and got a nice whistle when I get on the gas now

        Helpful (9)
      • September 13, 2015

        5 2000 GT - Mischief Installation Time: Less than 1 Hour

        Overall Peformance Improved

        I decided to buy this unit because I plan to go forced induction in the future. My car has all the bolt-ons and wanted to see if the throttle body will make any difference. I can say that it has in a positive way. Accelerating is much smoother and throttle response is very positive. I felt that I got more power out of the engine with the throttle body upgrade. The difference can be felt though out the power band as well as above 3000K rpms. Installation was a snap. A great bang for the buck piece.

        Helpful (10)
      • April 10, 2014

        5 2004 GT - shorty712 Installation Time: Afternoon

        TOTALLY worth it!

        I LOVE my BBK 75mm throttle body for my 2004 Mustang GT. Fit right on perfectly. And along with my other upgrades this is just what i needed. My car gained hourse power and now has this awesome turbo like sound to it, I could tell the hourse power increase as soon as i took off for the first time! Totally worth it!!

        Helpful (9)

      Questions & Answers (8 answers)

      5 Top Rated Questions

      I have a 2002 GT Mustang 4.6. It says carb legal from 96 to o 01 for this TB. I'm actually running it and it passed smog 4 times but the last time I smoged it it didn't pass because it didn't have the EO number on it. So is it legal for California? And what do I do to get it to pass? Thank you. I'm running a Kenne Bell blower too.

      Is this street legal and will it pass the Emission test on California

      • This would be Carb legal under Carb number D-245-13 for 96-01 models only.

      Helpful (0)

      I have a 2004 Saleen with the Series IV Supercharger. Will this fit my blower and how much more of a throttle body is this compared to the stock one?

      • The Series IV just ran a GT style throttle body, this will absolutely fit. Your Series IV supercharger should be set up with a 65mm throttle body if that's still stock. That's an excellent increase in airflow for a supercharged Mustang, just be sure to get a dyno tune for proper calibration since you're supercharged.

      Helpful (0)

      Will this fit on the edelbrock ultra low profile intake elbow?

      • No, unfortunately the Edelbrock Ultra Low Profile Throttle Body Intake Elbow, item 56532,, is designed for 90mm race style throttle bodies.

      Helpful (0)

      Will this fit on my C L upper intake plenum?

      • Yes, the C&L Upper Intake Plenum's will work with the BBK 75mm Throttle Body or 70mm throttle bodies.

      Helpful (0)
      Post Your Question
      3 More Questions
      Would this work on my bone stock 04 GT without any FI or Tune? 1 answer
      What is the O.D. of this throttle body inlet? Basically, what size coupler does it use? 3"? Thanks! 1 answer
      Does this product require a tune? Will it change the idle revs without a tune? 3 answers

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Throttle Body
      • (1) Throttle Body Gasket
      • (1) Pipe Plug
      • (4) Throttle Body Screws
      • (2) TPS Screws

      Tech Specs

      Throttle Body Specifications
      Bore Size: 75mm Single or Twin Blade: Single
      Year: 1996-2004 Model: 4.6 GT
      Material: Aluminum Finish: Cast Aluminum
      Manufacturer: BBK Computer Tune Required: No

      Will It Fit My Mustang

      • Bullitt - 01
      • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04

      Does not fit 2001 Bullitt

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