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Flowmaster FlowFX Dual Exhaust System with Black Tips; Middle Side Exit (09-21 5.7L Tundra)

Item TU2125
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Market Price $878.99 You Save 12% ($108.04)
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$770.95 (kit)

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      Video Review & Installation

      Merideth: Hey guys, so today we're checking out the Flowmaster FlowFX Dual Exhaust System with the black tips and the middle side exit fitting all 2009 to 2021 5.7 liter Toyota Tundras. Now this will be a great pick for the Tundra owner who is in search of not only a good-sounding exhaust but a good-looking one at the same time. Now, this exhaust will offer a nice deep tone to the 5.7 liter without a crazy amount of volume, which is great for the tundra owner who wants to hear their exhaust but doesn't want a system that's gonna be overbearing.With that being said, when it comes to the loudness meter, I'm giving this a two out of five with one being completely stocked, and five being awake the neighbors loud, giving this a good volume level for the daily driver. This will also offer a dual middle side exit with large black tips, great for anybody who's a fan of a sporty, or even an aggressive look when it comes to their exhaust.Now when it comes to the construction, this will feature the FlowFX straight-through performance style muffler, which is responsible for that sound and slight increase in power due to improving the airflow. This will also have two-and-a-half-inch Mandrel Bend, 409 stainless steel tubing for, again, smooth and direct airflow, but also good rust resistance.And the large 4-inch tips on the end there are going to be a higher quality when it comes to the materials, making sure that they'll look good for the lifetime of your truck made of a 304 stainless steel construction covered in a black ceramic powder coat. Not to mention this is going to be direct bolt-on, and come with everything that you need in order to get this onto your truck making install hassle-free and very straightforward.Now, jumping into the price, this exhaust comes in at roughly $750, making this more on the affordable side for a cat back. Now in comparing it to some other choices, what I like about this kit is that it's not gonna be over the top when it comes to sound, but you are still going to get a pretty deep rumble. Other choices for side exits may be set up a little bit differently when it comes to the sound level of being a little louder than this choice. They also may integrate a different look to the tips on the end, or have a full 304 stainless steel construction, which is going to be a little bit pricier than this 409 here.Now I think if you're looking to save a couple of bucks on a good-looking and sounding catback system, then this is going to be it. Now install is gonna be a two out of three wrenches on the difficulty meter, taking me about three hours to get the job done with the right-hand tools. And one of our installers here is gonna show you how to get that done step by step. So, that's gonna wrap it up for my review. Let's go ahead and get into the install.Man: Tools used for this install, 3/8, electric impact gun, 14, 15, and 17-millimeter sockets, an exhaust grommet removal tool, 15-millimeter wrench, and PB Blaster. Hey guys, I'm gonna show you how to uninstall and install our exhaust here on our 2018 Tundra, so let's get started.So, first thing we're going to do is I'm gonna take some PB blaster here. Now, I have my vehicle up on the lift. If you don't have a lift, and you're supporting this thing with a jack and jack stands to get underneath it, make sure you support it properly, so it doesn't fall. But I'm gonna take my PB blaster here. I'm gonna spray a couple of my exhaust grommet hangers. There's one here, two up there, and another one. We're gonna spray those. I actually already did. We're letting them soak, and we're gonna take our exhaust grommet removal tool, get up there, disconnect the ones here, leave one hanging. We got some bolts up there to take off, and we'll remove the whole exhaust system in one piece.So, now I'm at the back of the truck. We're at our tailpipe here. I'll take my exhaust grommet removal tool, and we're gonna remove this one first. And I already sprayed it with PB blaster, so I'm just gonna get up in here, and pop this out like that. Now, we'll go up and remove one by the muffler. Same thing, we're gonna take our exhaust grommet removal tool, just push it in there and pop it all just like that.So, now what I'm gonna do is remove our two 14-millimeters here. Then we're gonna remove some bolts we have up here holding it on. We have two other rubber grommets here that I'm gonna leave to hang and hold the exhaust up, while I take these off. So, I'm gonna take my 14-millimeter, and my 3/8 gun here, and remove these. And the one up top. And once we got those out of the way, I'm gonna go to the front here, remove this one, and then remove the top one.Now on our truck, looks like somebody's had this exhaust off once or twice, and they must have broke the bolt off, so we put another bolt in. I'm gonna be using a different socket here. It's actually a 17-millimeter with a 15-millimeter wrench to get this one loose. But on your vehicle, if it's factory, it's gonna still be the 14-millimeter. So, now I got that loose. And what I'm going to do is pull the bolt out, hold this down a little bit, pull the bolt out, and just let the pipe hang just like that. Make sure you save the gasket. Don't lose that one or the other one back here. There's another gasket on back here. Now we're going to get ready to remove the whole exhaust system in one piece.So, now what we're gonna do is remove these two rubber grommets right here. Now, at this point in time, the exhaust is hanging in the back. You're gonna wanna get somebody to help you. I got my friend Bill here, he's holding the back up, while I'm gonna hold the front. I'm gonna pop these out, and get these rubber grommets out of the hangers here like that. That's one. And I'm gonna come over here to the other one, and pop this one out like that.Now, you're going to be able to, like I said, you're gonna wanna grab somebody, and we'll be able to fish this out. So, now we're gonna just fish it back through the back there. And me and Bill are gonna walk this thing right on out. All right, so first thing we're gonna do, now we have our exhaust off, is we're gonna make sure that we have our gaskets put on both our lead pipes here. I'm gonna take the first pipe here, get it up in place. So, we're gonna get our pipe up in place here, start our 14-millimeter. Now in our vehicle, we had a 14-millimeter up top here, or your vehicle would, ours doesn't. I have a bolt in the nut. I'm gonna get that one started, and just try to run it in by hand as best as I can.Okay. And then I'm gonna take my 3/8 gun. I'm gonna take my 14-millimeter socket here, tighten the bottom one up. And again, you're going to have a top one that is a 14-millimeter. I don't. So, I'm gonna take my 17-millimeter, and my 15-millimeter wrench here, and tighten our top one up. And now we have that pipe tightened. We're gonna go to our next, our second lead pipe.So, now we're gonna make sure we have our gasket on this one. I wanna get our pipe in place here. I'm gonna take my two 14-millimeters that we took out on our factory exhaust, get those started, and I'll start the top one. Again, I'm gonna take my gun with my 14-millimeter, tighten these up, and the bottom one. Now, we're going to install our hangers to our grommets.So, now we're gonna install our hangar here, and we're gonna get this in place on our pipe, and this is gonna hold it up into place with our rubber grommet up here. So, I'm just gonna push that in place and get it started. And we're gonna do the same on the opposite side. I'm gonna put this in place, and it's going to go through our rubber grommet like that.Now, I'm not going to tighten these up yet because we're gonna hang our muffler. Then we'll snug these up and get them tight after we get our muffler in place. Next, what we're gonna do is slide our clamps. Make sure you have them going. Have one going that way, one going that way. We'll slide them back. I'm gonna take our muffler, line it up with our pipes here, get it in place, and get our clamps in place. Next, we'll tighten them up.All right, so now what we're gonna do is I'm gonna take my clamp with my 15-millimeter on my 3/8 gun. We're gonna tighten our clamps up. Same on this one. And while we're here, we'll tighten up our hangar brackets. Same with this one. And now we have those tight. We'll go on to our side exit. So, now we're gonna take the hangar that is supplied in a kit. We're gonna use the 14-millimeter nut and washer, and the lock washer nut. We're gonna put it in this top hole right here. I'm gonna start the lock washer and the nut.I'll get that started. And you wanna face it up like that, so it's straight. I'm gonna tighten it up as good as I can with hand. And then I'm gonna take my 14-millimeter and my 3/8 gun and tighten it up. Pretty much like that. Yep. Now, we'll install our tailpipes. So, now I'm gonna take my clamps. We're gonna stick them on first. Put one that way, and one that way. That way, it'll be easier to tighten them up.I'm gonna take our tailpipe assembly here, and what we're gonna do is I'm gonna get it up into the rubber grommet up top there first, and push it through the second one here, while we line it up with our pipes. So, now we're just gonna push it in, get it in place here, and it's a little tough with the leaf spring, but and that's about it. So, now we have our pipes in, our tailpipes. We're gonna take our 15-millimeter on our 3/8 gun. Tighten up our clamps. Same on this other one. Line them up.And that'll wrap up this install. That wraps up this review and install of our Flowmaster FlowFX Dual Exhaust System with black tips middle side exit for '09 to '21 5.7 liter Tundras. Thanks for watching, and for all things Tundra, keep it right here at

      Product Information

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


      • Moderate to Aggressive Performance Sound
      • Improves Exhaust Flow for an Increase in Power
      • FlowFX Straight-through Performance Muffler
      • Mandrel-bent 2.50-inch, 409 Stainless Steel Tubing
      • Dual Side Exit - Before Wheel
      • Black Ceramic Coated 304 Stainless Steel 4.0-inch Exhaust Tips
      • Direct Bolt-On Upgrade
      • Fits 2009-2021 5.7L Toyota Tundra Models


      Flowmaster FlowFX Series Sound. Upgrading to a Flowmaster FlowFX Dual Exhaust System will unleash the beast hiding under the hood of your 5.7L Toyota Tundra. This FlowFX Cat-Back will convert your 2009-2021 Tundra's quiet, tame exhaust note into a deep powerful one, with a deep mellow tone inside the cab. This Cat-Back exits on the passenger side before the rear wheel for impressive good looks.

      Power And Performance. Flowmaster FlowFX Dual Exhaust not only improves the sound of your 5.7L Tundra, but it will also improve its performance. With the help of its free flowing muffler design and high-flow mandrel bent piping, this Cat-Back will significantly improve exhaust flow for an increase in rear wheel horsepower and torque.

      Stainless Steel Construction. Flowmaster manufactures their Cat-Back Exhaust Systems from 2.5-inch mandrel bent 409 stainless steel tubing for it's durability and corrosion resistance. This Cat-Back features a straight-through FlowFX Series performance muffler with a pair of 4.0-inch diameter black ceramic coated 304 stainless steel tips for impressive styling and sound.

      Direct Bolt-On Installation. Flowmaster engineered their Cat-Back Exhaust to be a direct bolt-on upgrade replacement. This FlowFX Dual Exhaust System will easily bolt straight up to the factory piping without any cutting, modifications or special tools required for an easy straight forward installation.

      Application. This Flowmaster FlowFX Dual Exhaust System with Black Tips; Middle Side Exit fits 2009-2021 5.7L Toyota Tundra models with a 145-inch Wheelbase only. Does not fit standard cab short bed or Double cab long bed models.



      Flowmaster 717786

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • Right Inlet Pipe, Front
      • Left Inlet Pipe, Front
      • Muffler
      • Right Tailpipe, Rear
      • Left Tailpipe, Rear
      • (2) Tips

      Customer Reviews (62)

        Questions & Answers

        10 More Questions

        Will It Fit My Tundra

        • 5.7L V8 - 09, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21

        Designed for vehicles with the 145 in. Wheelbase only