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BBK 73mm Throttle Body Intake (96-04 GT)

Item 394116
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      Review & Installation Video

      Hey, guys, Adam here with Today, I'm bringing you a quick overview of the BBK 73 millimeter throttle body intake, which will be available for all '96 to '04 4.6 liter GT Mustangs. In this video, of course, we'll be going over the performance and benefits you can expect out of the throttle body intake system from BBK, as well as its materials and construction. I'll top the video off with the install, which I'll let you know up front is going to be a one out of three wrenches on our difficulty meter because throttle bodies are, honestly, one of the easiest things you can do to your 4.6 liter Mustang.The BBK 73 millimeter throttle body intake I have here today will be for any '96 to '04 4.6 liter owner who's looking to get a better throttle response overall, as well as a bit more acceleration off the line, while also picking up one of the easiest bolt-on mods you can possibly do to that engine.Before I jump into the juicy details about the 73 millimeter throttle body, I want to point out that, usually, people say bigger is always better. Now in the case of throttle bodies, that is not the case. The 73 millimeter throttle body is going to be one of the bigger options you can add to your 4.6 liter GT, but you don't want to go this big unless you absolutely need to. So what I mean by that is, if you have basic bolt-ons, including a full exhaust, you might be warranting the 73 millimeter throttle body, but if you just have a cold air intake, the 73 millimeter is probably not going to do you too much good, in which case, you might want to look at just a 65. But, with that said, if you've got those full bolt-ons, including a full exhaust, the 73 millimeter can definitely improve the throttle response and acceleration, but not by entirely too much.The good thing about this particular option from BBK is, you get the throttle body and the plenum attaching to your intake manifold. What that basically does is controls a little bit more of the airflow, and with the 73 millimeter housing here, more airflow, you get a little bit more room in the throttle body and the elbow here connected to your manifold, pulling it a bit more than just a typical throttle body. Now, with that said, it is going to cost you a bit more, which I'll touch on in just a second, but this is great for the guys who really need that little bit of extra airflow. And, of course, it's going to go great with a forced induction application, but if you don't have one and you're going to naturally aspirate it, this can do you some justice, as well.For the guys out there who are going to benefit from this 73 millimeter option from BBK, I don't want you to expect a world of difference when it comes to power. Now, as far as horsepower and torque, expect low single-digit gains, of course, but you are going to notice a small difference in throttle response and acceleration, something that the throttle body is known to help with.Now, even though this particular option is an intake and plenum combo, it's not going to require a tune. So what that basically means is this does not require you to fine-tune your computer to read for a 73 millimeter throttle body. However, it is recommended to pick up a computer tune simply because, when you tune your computer to read for the 73 millimeter upgrade, you are going to get a bit more performance out of it. Of course, that goes for almost any aftermarket part, as far as performance goes. Giving it a computer tune will definitely maximize its performance, but again, don't expect the world of difference either way.As far as materials and construction goes here, expect a direct OEM fit replacement. It's all manufactured from a lightweight 356 aluminum alloy, CNC machined for a perfect fit. Of course, this will make for a great OEM replacement if your factory one's defective, or if you're just looking for a small upgrade up to a 73 millimeter. With that said, it's also completed in a charcoal powder coated finish, so it even looks good under the hood, and it has that BBK logo printed right on top of the materials, all embedded into the materials. Definitely looks good under the hood, in my opinion, and I do think, with the 73 millimeter upgrade, you'll get that throttle response and acceleration you're looking for.Now, if you're interested in picking this up for yourself and your 4.6, expect to be spending around $250. Now, some people might think that's a lot of money. My personal opinion, it's a pretty average price tag, especially considering you get the 73 millimeter upgrade attached to the plenum combo to go right into your stock manifold. Now, this one isn't going to be for everybody, but of course, if you're looking to pick up a new throttle body here, maybe to replace that stock defective one, like I just said, this is going to be a pretty good replacement.Shifting gears over to the install portion of the video, like I said in the very beginning, throttle bodies, in general, including the plenum intake, is going to be one of the easiest mods you could possibly do to your 4.6 in addition to its cold air intake. With that said, you're going to need some basic hand tools, like a ratchet and a simple socket set, maybe a flathead screwdriver to help you with the clamps. Overall, you're just transferring a couple of sensors, a couple of clamps over to this particular one, but otherwise, it'll bolt directly up to your stock manifold and your stock airbox.Now, for a regular throttle body, it's typically four bolts holding it onto the manifold, but with the extended plenum, you're looking at about six, I can see here, including the TPS sensor, the idle air control, of course the return spring. All those good accessories that go along with it will detach from your factory option and bolt right up to the 73 millimeter from BBK. Once you have that factory one taken off and the bolts removed, as well as the accessories, simply swap it directly out with this intake and plenum, bolt it back up the same way you took it off, and you're good to go. Overall, about 30 minutes or so on the install, and a one out of three wrenches on our difficulty meter.Just to wrap things up here before we get going, if you're interested in picking up a little bit more throttle response and acceleration, and you're looking to replace that stock throttle body with a little bit of a bigger one, you might want to check out the BBK 73 millimeter intake and plenum kit we have here, which is available at

      Product Information

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


      • Increases Airflow for Additional Horsepower and Torque
      • Improves Throttle Response
      • 73mm Single Bore Design
      • High Flow Plenum and Throttle Body Combo
      • Lightweight 356 Aluminum Construction
      • Charcoal Wrinkle Coat Finish
      • No Computer Re-Tune Required for Operation
      • Direct Bolt-On Installation
      • 1 Year Manufactures Warranty
      • CARB EO Number: D-245-26 (Applies to 1999-2004 Model Years)
      • Fits 1996-2004 4.6L GT Mustangs


      Improve Performance. Improve the power and performance of your 1996-2004 GT Mustang by installing a BBK 73mm Throttle Body Intake. A Throttle Intake incorporates a high flow intake plenum and a larger 73mm BBK throttle body all in one great performing unit. This BBK Performance Throttle Intake is a direct bolt-on upgrade that improves throttle response and is good for up to a 15 horsepower increase.

      No Tune Required. This BBK Power Plus Series 73mm Throttle Body Intake is designed to improve the performance of your GT without the need of reprogramming your Mustang's computer. The engineers at BBK really did their homework to improve your Pony's power using the factory tune. Even though a re-tune is not required for operation, AmericanMuscle recommends a custom tune to reprogram the vehicles computer (ECU) to get the best possible performance from this Throttle Body.

      Quality Construction. This BBK Mustang Throttle Body Intake 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. This BBK Performance Throttle Body is completed in charcoal wrinkle powder coated finish for impressive under hood styling.

      Simple Bolt-On Installation. BBK engineered their Throttle Body Intake to be a simple bolt-on upgrade. Featuring brand new linkage there is no additional modifications required. Installation can be completed in under an hour with simple hand tools.

      BBK Warranty. BBK products are warrantied against any defect in materials or craftsmanship for a period of one year from the date of purchase. Some exclusions or limitations may apply, please see manufacturer's warranty for complete details.

      CARB Certification. This BBK Power Plus Series Throttle Body is CARB certified under EO Number D-245-26 for the 1999-2004 model year, therefore it is legal for use in California or any other state adopting California emission standards. Please note, this item is not CARB Certified for the 1996-1998 model years.

      Application. This BBK Power Plus Series 73mm Throttle Body Intake is specifically designed to fit the 1996 to 2004 GT Mustangs equipped with the 2V 4.6L Modular V8 engine.


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

      BBK 17801

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (61)

      Write a Review

      Ratings Summary

      4.1 out of 5 overall rating from 61 customers

      Installation Time: Less than 1 Hour

      • March 10, 2020

        5 1998 GT - Huntz Installation Time: Afternoon

        Great Product

        Excellent bolt on....I'd highly recommend! Didn't take long to get on, maybe 2 hours.

        Helpful (4)
      • March 03, 2020

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

        Yes yes yes

        I have not installed the product yet but it does fit on the edelbrock intake. The product is relly quality and the support was awesome since i ordered it when it was out of stock!! Will definitely buy more on this site!

        Helpful (4)
      • November 14, 2019

        5 2001 GT - seantime Installation Time: Afternoon

        Big Air

        I love the way this body intake looks. I had the Candl plenum and that worked just fine, but couldnt beat the price on this part.

        Helpful (3)
      • September 25, 2019

        4 1997 GT - ragtop Installation Time: Less than 1 Hour

        Helpful (3)
      • September 22, 2019

        1 2003 GT - LayneMac20 Installation Time: Less than 1 Hour

        RPMs hang

        When the cars runs with this TB my RPMs hang every time I would give it some gas. Valve isn’t shutting while running but shuts fine when car is off. Put the stock TB back on and runs fine.

        Helpful (10)
      • September 16, 2019

        4 2000 GT - CHRISTIAN Installation Time: Afternoon

        Great fit!

        Throttle body fit really well just be very careful installing original parts onto the t/b. I recommend using longer bolts, almost stripped out two of them on the IAC valve if I'm not mistaken. Haven't cranked the car up yet as I'm still putting it back together

        Helpful (4)
      • May 14, 2019

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

        BBK Good product

        It may not be the cheapest out there but if you want quality it $$ .... very nice fit good looking

        Helpful (4)
      • April 20, 2019

        4 1998 GT - Cocoa Installation Time: Less than 1 Hour

        Good but was missing some hardware

        Excelent piece. Much nicer to look at than I anticipated. Install wasnt a problem but mine was missing the connector for the pcv hose. I put it on and was like what the heck is supposed to go where this big hole is. I just ran to my local parts store and got one. No big deal.

        Helpful (5)
      • April 08, 2019

        5 2002 GT - Beeper Installation Time: Less than 1 Hour

        works grwat

        Very easy install. Looks mint and love the sound it makes at WOT. I do see a big difference in throttle response not sure on more power without a dyno pull.

        Helpful (5)
      • March 09, 2019

        4 2003 GT - Terry Installation Time: Afternoon

        Good product bad quality

        Good after i got it to work stripped hole and plastic fittings in the way of the iac. Dont over tighten.

        Helpful (5)

      Questions & Answers (34 answers)

      5 Top Rated Questions

      I'm interested in purchasing this throttle body for my 1998 mustang GT as is right now the car is stock. I was wondering if I should go with the 73 or 78 mm throttle body because I am also going to purchase the bbk cold air intake and wanted to know if that would fit it as well. These will be my first mods so any advice?

      • The 78mm Throttle body is generally for heavily modified cars. I would stick with the 73mm throttle body with your set up, this will work very well for you!

      Helpful (4)

      Will my BAMA SCTX4 tuner have a tune installed to take full advantage of this throttle body?

      • You can request a new tune from Bama for when you install the BBK 73mm Throttle Body Intake.

      Helpful (1)

      I have a 03 GT that's mostly stock. I was wondering if this will fit the air raid mxp cai.

      If I get this throttle body and the ford performance intake with a cold air intake will it need a tuner or need to be tuned? It’s a 2002 4.6 GT 5 speed

      • This throttle body itself does not require a tune, but considering you already have a custom tune for installing the Ford Performance intake manifold, a new tune for this throttle body will pull more out of the entire application.

      Helpful (0)

      73mm or 78mm for a 150hp nitrous shot?

      • We would suggest speaking with your tuner on what size throttle body/throttle body intake would be best for your application.

      Helpful (0)
      10 More Questions
      73mm or the 78 mm with stage 3 comp cams typhoon intake 40 pound injectors and blaster coil over which will be better 1 answer
      After installing, the throttle cable is very loose, and the throttle body isn't closing all the way cause my car to idle at high RPM's. Any suggestions on fixing these? 0 answer
      i have this throttle body on my 2003 gt mustang. whenever i come to a stop light it will die or stall out ? what can i do to fix this? 1 answer
      Hi I was wondering if this will fit with the Edelbrock Junior Intake Manifold 1 answer
      Is this street legal and willit pass theEmission test on California 1 answer
      When you say the 78mm is more for boosted mustangs, what do you mean exactly? For basic bolt ones, cold air, headers/exhaust would the 73 or 78 work best? 1 answer
      Does this throttle body sit higher than the stock plenum/throttle body? I'm looking to gain 3/4" to 1" 1 answer
      I have a 2002 gt mustang that has long tube headers. I am wondering if this would work with the stock air intake? 1 answer
      Hi will I need to retune my mustang with this tb ? I hav a vortech supercharger installed currently on it 1 answer
      What kind of hp/tq gains are typical with the bbk 73mm tb? Installed it along with the Airaid cai and Bama tune...WOW!! 1 answer

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) 73mm Throttle Intake
      • Installation Hardware

      Tech Specs

      Will It Fit My Mustang

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

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