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BBK 78mm Throttle Intake (96-04 GT)

Market Price $324.79 You Save 11% ($34.80)
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  • Item 56051
  • MPN# 1780

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Features, Videos & Details

  • Better Throttle Response
  • More Horsepower
  • Great for Supercharged GT's
  • Crinkle Coat Finish
  • Fits All 1996 to 2004 4.6L GT Mustangs

Review & Installation Video

Hey everyone, I’m Justin with, and today, I’m going to break down the BBK 78 mm throttle intake for all ’96-’04 Mustang GTs. This product from BBK combines two of their most popular items: the tried and true larger diameter BBK throttle body along with a very popular two-valve mod, the larger diameter intake elbow. This has combined it in one very sleek package that is a lot cheaper than ordering both products separately. Why would you want something like this versus your standard normal diameter throttle body? Well, as soon as you place a larger diameter throttle body on your stock intake plenum that is not port matched (meaning it is not matched to 78 mm), you’re instantly losing out on all that extra flow thanks to that larger throttle body. This kit from BBK takes care of all that. This throttle intake is offered in a massive 78 mm diameter, which will allow for maximum airflow. That’s also going to help with your looks under the hood as well, thanks to that very sleek black finish. That large diameter will be perfect for your forced induction setups, including superchargers or turbochargers when you have to move the absolute most amount of air through your motor. Installing this throttle intake for the first time is a relatively painless task that should only take a couple hours. You will need to transfer over both your intake air control valve and your TPS sensor from your stock unit over to the new BBK. After that, simply reinstall in reverse order, plug everything in, and you should be good to go. So if you’re looking to increase the airflow in your 2 valve 4-6, all the while increasing your throttle response and getting some big top-end gains, you’ll definitely want to check out this throttle intake from BBK Performance.

More Power. BBK Performance has designed and patented the first Throttle Intake. A Throttle Intake incorporates a high flow intake plenum and a larger 78mm BBK throttle body all in one great performing unit. This throttle intake is a direct bolt-on and is good for an additional 12 to 15 horsepower.

Quality Construction. This BBK Mustang throttle body is CNC machined from high quality 356 aluminum to ensure OEM quality and a perfect fit. Features like OEM die stamped throttle linkages, double sealed bearings, and o ringed throttle shafts make this throttle body one of best on the market today.

Application. BBK's 78mm throttle intake is designed to be a perfect fit on all 1996 to 2004 4.6L SOHC GT Mustang. This BBK brand throttle body reuses the stock throttle body gasket.

Please Note. A 78mm throttle body works great on a heavily modified or supercharged GT mustang, because stock or mildly modified GT's do not flow air enough to benefit from the larger Throttle Body.

Technical Note. This BBK product is not legal for use in emission restrictive states.

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

What's in the Box
  • (1) Throttle Body
Installation Info
Tech Specs
Throttle Body Specifications
Bore Size: 78mm Single or Twin Blade: Single
Year: 1996-2004 Model: 4.6 GT
Material: Aluminum Finish: Charcoal Crinkle Coat
Manufacture: BBK Computer Tune Required: No
Will it fit my Mustang?
  • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04

Does not fit 2001 Bullitt

People Who Bought This Item Also Bought

Most Helpful Reviews

Don't delay, get it

Highly Recommended, slightly modified 98 GT daily driver; 3000 rpm and above power gains . The BBK will whistle at high RPM. Hint: take the rubber boot the cold air intake while the motor is warm and install ...

Read More
Helpful (4)


worth it, but some screws need to have washers. be careful of using stock screws you might go through the throttle body.

Helpful (2)

Overall Rating 4.9 out of 5 stars
Read All 100+ Reviews

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29 Questions / 11 Answers

Ask a Question

would it be good to use on my almost stock 1999 gt ? All i have done to my car is a K&N intake, flowmaster 40'S mufflers and a BBK catted x pype. im planing on buying a bama tuner so wopuld that help too ?


Helpful (10)
  • This would be too much air flow for your Mustang's engine. A better choice for power would be a 70mm Accufab or BBK unit. You would see the most gains from these throttle bodies with your combination. I would, also, suggest getting the matching upper plenum. Hope this answers your question and thanks for choosing American Muscle!


Show 4 more answers

78mm for N/A or smaller?? For a naturally aspirated engine would you get more horsepower out of a larger intake such as this 78mm Throttle intake made by BBK, or would you get more horsepower out of a higher velocity intake with a smaller diameter such as the Accufab 70mm throttle body and plenum?


Helpful (8)
  • This not so much an answer but a question are you going to remain stock? Upgrading to a larger throttle body is usually one of the first steps besides the exhaust in modding engines so if you are going to remain stock then the 70 mm would get you better gains but if you are going to put cams or power adders then the 78 is a must.


Show 2 more answers

Do I use the same two screws on the cruise control mount on top


Helpful (0)
  • The cruise control component will simply pop on and off of this throttle body.


Looking at doing stage 2 cams. Currently have bbk cai, bbk o/r x pipe, SLP loudmouth II mufflers. Would this pair good with stage 2 cams and valve springs on top of the other modifications previously stated?


Helpful (0)
  • If this vehicle is not supercharged or turbocharged, I would recommend purchasing the BBK 73mm throttle intake item #394116 instead of this as the 78mm intake is best on forced induction which would need all the air it can get. Since this is a naturally aspirated car, the 73mm intake will work great with the stage 2 cams and BBK cold air intake.


I had just installed this throttle body today. After finishing and starting the car, it idled rough in a way that resembles a car that is "cammed out". Even though I like the sound it makes, as it is far more aggressive, I want to know if that is supposed to be the reaction. I have an SR CAI already with the throttle body and a custom BAMA tune on its way. I did notice an increase in power and a nice whistle when I shift almost resembling a turbo but not quite. Anyways, please let me know if the rough and aggressive idle is anything to worry about, or if it will adjust over time or with the tune. Thanks!


Helpful (0)
  • I am sorry to here about this. This may be your TPS. If your Throttle position sensor is off this could be the cause of the hard idle. Give us a call in and we can help you out with this!


I just bought this TB setup, i do notice from a cold start it wants to bog out and shut off. So i would have to restart it and it would be fine once the RPMs even out. My car has no motor work done at all, just CAI this TB and borla exhaust. Do i need to purchase a tuner or possibly a smaller TB?


Helpful (0)
Answer This Question

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Customer Reviews (100+) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Less than 1 Hour

Installation Cost:0-$100

  • Performance Gain 4.5625 4.6
  • Fit 4.757813 4.8

  • 4/5

    October 03, 2016

    Great piece to add to a GT

    Besides the part that it is a tad steep on pricing, I still think it is worth every penny. Hooked the 78mm throttle body/plenum up to my bbk throttle body and I can tell a huge difference. The item description says that it works best wit FI systems but my NA system is working great with the 78mm.


    Year: 2004 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    April 26, 2016

    bbk throttle body perfection

    excellent modification for your horse ... I'm very happy thank american muscle...


    Year: 2002 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    February 17, 2013

    Awesome product

    I bought this intake when it first came out a couple years ago and I loved it from the start. Very easy to instal and looks great under the hood. Works great with my supercharged engine.


    Year: 2002 Submodel: GT LONG ISLAND

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    October 30, 2011

    Don't delay, get it

    Highly Recommended, slightly modified 98 GT daily driver; 3000 rpm and above power gains . The BBK will whistle at high RPM. Hint: take the rubber boot the cold air intake while the motor is warm and install it on the new BBK before the rubber cools.


    Year: 1998 Submodel: GT

    Helpful (4)

  • 5/5

    May 27, 2011


    once i installed and turned on the throttle body my car sounded like a beast. BUT, instructions say to let the computer calibrate to the T/B and once that happened i got a rough idle, left and right bank o2 sensor code, and a cylinder misfire code. i recommend going with sct tuner. once i installed the tune everything went away and the car has been running like a champ ever since.


    Year: 1999 Submodel: GT

    Helpful (3)

  • 5/5

    June 28, 2009

    Great Product

    I bought this BBK Throtle Body BBK Cold Air Intake and spacer and my car was sucking air like crazy. As soon as I floored it I felt the diffrence, I was very satisfied whit this product. Its a good price and it look very nice.

    Sergio L.

    Helpful (2)

  • 5/5

    December 26, 2008


    worth it, but some screws need to have washers. be careful of using stock screws you might go through the throttle body.


    Helpful (2)

  • 5/5

    December 18, 2010

    engine service light came on

    awesome produst the car really came to life through the rpm range and really gave it some umph only thing as soon as the car was shut off and then restarted the engine light has comr on snd stayed on very good product though

    terry difrancesca

    Helpful (5)

  • 5/5

    April 24, 2009

    Exellent product

    Really noticable horsepower gain,better throttle response and it looks great sitting on top of my 4.6.Although I do suggest buying a new tps sensor cost is about 20 bucks. ford used locktight on the screws that hold the tps to the throttlebody,and that can make removing the tps very difficult.


    Helpful (32)

  • 5/5

    Installation Time: Less than 1 Hour

    April 19, 2012




    Year: 1997 Submodel: GT PEORIA IL

    Helpful (43)

  • 5/5

    April 01, 2011

    BBK 78 mm throttle body

    This is a great part! Instant throttle pick up. You can hear the difference the first time you punch it! A must have if your looking for performance!

    John Darst

    Year: 2004 Submodel: GT

    Helpful (3)

  • 5/5

    July 09, 2011

    Interesting Gains

    Before you purchase this product you have to note that on a naturally aspirated 2V motor the gains are on the top end... when you hit about 3000 RPM you feel the increase in power, the best logical explanation is this... You are increasing the diameter of the throttle body you so you are decreasing the velocity (speed) of air entering the motor. Off the line it is a little bit sluggish BUT the gains are so noticeable that you feel it pull just like a turbo. The throttlebody also whistles when you shift gears, it sounds awesome. RECOMMEND this product all day, just make sure you don't buy the biggest intake pipe out there so you regain some of that velocity. :) YOU WILL FEEL THE GAINS at 3000rpm, for you speed demons you will be utterly impressed. I give it 5 stars all day. You just have to take into consideration that this is a low velocity TB so you will experience some turbo lag type symptoms. I love mine and the pictures don't do justice for the appearance :) BUY, ENJOY, BE IMPRESSED!

    Christopher Sanchez

    Year: 2004 Submodel: GT

    Helpful (32)

  • 5/5

    March 12, 2011


    really woke car up,amazing throttle response. there is a note under product description that say wont help unless your car is heavily modified or supercharged , NOT TRUE.i have got intake,pulleys and exhaust,made huge difference.worth every penny wish i would have got a long time ago


    Year: 2003 Submodel: GT

    Helpful (25)

  • 5/5

    January 06, 2010

    Great Procuct!!!

    Just had this put on today and all i can say is wow! I also have the BBK cold air intake and it really improved my throttle response. It does have a small whistle but that is normal because of more airflow. Even if you have a stock gt, save your money and get this instead of getting a seperate plenum and throttle body. Don't worry about 70mm or 75mm. This is all you need.


    Helpful (15)

  • 5/5

    May 21, 2010

    bbk 78mm

    Greatly improved response and very easy to install. Works great with Comp Cams stage 2 Camshaft on the 4.6L

    Aaron B.

    Helpful (19)

  • 5/5

    February 02, 2010

    throttle plenum

    I thought this was a good upgrade for my mustang. The only problem I ran into was my boot from the intake to the throttle didn't fit. I had to buy a new one so it wouyld work.


    Helpful (13)

  • 5/5

    Installation Time: Afternoon

    February 14, 2012

    BBK 78 mm Throttle Body.

    Very pleased with this BBK throttle body. Install time was 2 hours, and the black and silver finish looks so much better over my old stock running pony TB. I notice the power difference when I take off from a greenlight or just an occasional drag to test her. This TB really opens up and you can feel the difference in the way the car sounds and extra emmphh... when she roars. Along with the BBK tuned shorty headers and Pypes midpipe, with violators, My stang now wakes the dead and sounds equally mean as she looks. Thanks BBK and American Muscle. JohnW


    Year: 2000 Submodel: GT Dallas, TX

    Helpful (8)

  • 5/5

    April 17, 2010

    BBK 78 MM

    I have a supercharged mustang gt and this has made a huge difference. I was blown away at the difference in response time and the power it unleashed. The only thing i didnt like about it is that it is so big I had trouble finding a hose connector to fit it so I heated the hose i had and got it around it. I would recommend to anyone with a supercharger. dont know about and N/A motor though

    Bryan S.

    Helpful (10)

  • 5/5

    July 13, 2011

    beware 96-98 mustangs

    Too much volume of air for the 96-98 mustangs. Through my experience the velocity is more important than volume. Causes bogging and low end loss of power and torque. Save your money and get other bolt ons like pi heads etc.


    Year: 1996 Submodel: GT

    Helpful (5)

  • 5/5

    Installation Time: Less than 1 Hour

    December 25, 2011

    Love it!

    It was easy to install altough i did have to buy a new tps sensor. You can realy feel the air suck in after 2500-3000 rpms. Also it goes real good with da bbk cai. Personaly i believe this is the best t/body to go with and theres no need to buy the upper plenum n t/body when you can have 1 complete piece.


    Year: 2001 Submodel: GT Houston TX

    Helpful (3)

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