Review & Install Video
Hey, guys. Adam here with americanmuscle.com. Today we're taking a quick look at and installing the BBK 85mm Throttle Body available for the 2018 and newer Mustang GT. You should be checking out the 85-millimeter throttle body if you're looking to increase your horsepower and torque numbers pulling in a little bit more, increasing that airflow, and ultimately, giving you a better throttle response and acceleration. Now, right off the bat, guys, I wanna mention that going from your factory 80-millimeter throttle body to the bigger 85-millimeter option from BBK is gonna be a really good choice for the guys who already have a couple of bolt-ons done to their 5.0. Now, if you've got already a cold air intake, maybe some long tube headers, a cat-back exhaust, maybe an intake manifold, something like that that is gonna require a bigger amount of airflow or more airflow, you can take advantage of it to increase that horsepower and torque. Now, if you do have a bone stock motor, won't reap as much benefits as it would if you already had some bolt-ons in place. Now, this throttle body is made from a 356 cast aluminum CNC machined housing which is the exact same materials as your factory option, so you're not losing any quality there, you're picking up the exact same factory quality and the OEM CAD data for a perfect fitment.
Now, the kit comes in right around 500 bucks. Now, it does carry a pretty heavy price tag. But if your engine is screaming for more airflow, then this is gonna be a very worthwhile investment. The big ticket here is you don't have to take apart any factory option just like you would with some of the other aftermarket options out there. It's ready to go right out of the box with new hardware.
Install, one out of three wrenches on our difficulty meter here, guys. And as you can see, I'm a little handicapped at the moment, so if I can do it like this, you can do it in the driveway at home with very simple hand tools, I promise you that. Took me about 45 minutes to an hour from start to finish. What do you say I show you how it's done?
Tools used in this install include an impact gun, a quarter-inch ratchet, a 3/8-inch ratchet, flathead screwdriver, 3/8 extension, quarter-inch extension, 3/16 hex socket, seven and eight-millimeter deep sockets, 10 and 15-millimeter deep sockets, and needle nose pliers.
Now, guys, the first step we're gonna grab our battery cover, pop that off, and set it down and out of the way. Grab an impact gun and a 15-millimeter deep socket and you're gonna remove the two bolts holding on your strut tower brace if your S550 came with one. Now, the second bolt over here has a plastic harness clip, you just pop that off and squeeze that out of the way and remove that second nut. Do the same thing on the other side. At this point, we can pop our strut tower brace off. Now, we need to get our engine cover off. Now, as you'll see, there's two holes here. Yours may have caps, grab a flathead screwdriver and pop those caps off. There's 10-millimeter nuts deep inside this hole, so what you're gonna need is an extension and a 10-millimeter socket to pop them off. We've got this one off already, we're going to tackle this one. Now, once you get it loosened up, the nut might stay in there, but if you pull straight up on your engine cover, it'll pop out of place.
Next up I'm actually gonna disconnect our breather line right here just by pushing straight back up. Grab an extension and a seven-millimeter socket and loosen up the clamp holding on your factory cold air intake tubing to your throttle body. Should get that nice and loose and rotate the clamp, pull straight back. Now, for the sake of this video, I'm actually gonna pop this intake off so you can see a little bit better, but it's not completely necessary for the install or uninstall of your throttle body. So, just for the sake of this, I'm gonna remove it, but you guys just know you don't have to. All right. Now, again, like I said, I'm just gonna disconnect this portion here to give you guys a better view on camera. I've already disconnected our hoses so I'm gonna pull this tubing off. All right. The next step here, grab a flathead screwdriver and you're gonna pop off this locking tab on the TPS sensor or your throttle position sensor. Once you get that, you're basically just going to pinch and disconnect. Grab an eight-millimeter socket, extension, and a ratchet, not an impact gun and remove the four bolts holding on your factory throttle body. You don't wanna use an impact gun and end up stripping them because you're gonna have to reuse these.
Well, guys, we finally got our factory throttle body off of our 2018 GT. It's on the table next to our BBK 85-millimeter. I wanna take you guys through some of the similarities but mainly the differences between the two kits. And I got to be honest, aside from the increase in size, there really isn't too much different here. I'll highlight a few key things. Factory throttle body is 80-millimeter, your new one is 85. So, the increase in five-millimeter is good for opening up that airflow giving you a throttle response increase. You're also gonna be getting all factory OEM quality hardware and machinery. So, the cast aluminum 356 housing is the same as your factory quality. You're not compromising anything there. It's using the same OEM CAD data as well for a perfect fitment. The new kit does not come with a new O-ring, you are reusing your old one. If you pull your factory throttle body off and your O-ring is cracked or in need of replacement, you're definitely gonna wanna pick up a new one and replace that. That can compromise an air sealed finish. You don't want any air leaks. You don't have to transfer over any TPS sensor or actuator from your factory one, this comes completely assembled right out of the box ready to bolt on. That's a big upside compared to some of the other aftermarket ones on the market. You definitely wanna pick one up, that you don't have to tear apart your factory one and put it all back together on your new aftermarket one. Completely new, not remanufactured throttle body ready to go right out of the box. The only difference is gonna be the increase in size and the bolts included in the kit. Factory eight millimeters, new hex head bolts. Not a big deal. We're just gonna use those upon the install. So, what do you say we get to it?
All right. Grab your 85-millimeter throttle body, grab the hex head bolts. You're gonna put one through and essentially line it up making sure that your O-ring seal is seated properly. If it isn't again, make sure you're grabbing a new one if you need to. Ours looks pretty good and it's already seated. Put this in place, start this easily on one bolt, grab a 3/16 hex socket and start to tighten this down. Once you get one threaded in a little bit, work on the other ones before you fully tighten it down. All right. Once you get all of them started, make sure your throttle body is centered. Grab your ratchet and tighten them all down. The key thing here is to not strip them, you really just wanna get them nice and snug. All right. Once all the bolts are tight, grab that factory harness and plug it in. Once you hear it click, push down the red locking tab and now you're good to go. Now, again, since we disconnected our cold air intake, I'm gonna put that tubing back in place. But from here, your throttle body install is complete. All right. Now, we're gonna pop that intake tubing back in place starting on our filter side, snap that in, reconnect it to our 85 throttle body, you can tighten on the clamps and replace the hoses. We just need a needle nose pliers to reconnect this one with that clamp and then we'll tighten down the rest of them.
All right. At this point, we can throw our engine cover back on, strut tower brace, and our battery cover. All right. Now, you can grab your 10-millimeter nut, slide this down into place. And what I'd like to do is just take an extension and a socket and tighten it down here. I think it's easier to line up in that deeper hole. At that point, you can grab a ratchet or impact and just tighten it up. Now, your strut tower brace, you wanna feed over to your driver side, slide the passenger side underneath of that positive terminal harness and line it up on the studs. And do the same thing on the driver side. Reuse those factory 15-millimeter nylon lock nuts. Grab your 15 socket and tighten them down. Reconnect that plastic retainer. On this side, we can put our battery cover back on. Shut your hood and you're good to go.
Well, guys, that's gonna wrap up my review and install for the BBK 85mm Throttle Body for the '18 and newer Mustang GT. Check this out if you've got some bolt-ons going on with your 5.0 and you're needing some more airflow to increase your horsepower and torque numbers, throttle response and acceleration. Going from the 80 to the 85 will definitely make a big difference and it's no tune required. If you wanna pick this one up for yourself, you can do so right here at americanmuscle.com.