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Flowmaster FlowFX Dual Exhaust System with Black Tips; Side Exit (14-18 5.3L Silverado 1500)

Item S113387
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      Video Review & Installation

      It's Joe from AmericanTrucks. In this video, we're going over the Flowmaster FlowFX Dual Exhaust System with Black Tips and Side Exits, fitting all '14 to '18 5.3 Liter Powered Silverados. Now, this is gonna be a great option for you if you're looking for a budget-friendly 409-grade stainless steel dual exhaust system that's gonna bring a moderate increase in volume over factory with a nice deep, mellow tone. So, as you guys just heard, this is gonna be a solid increase in volume over the factory system. I'm gonna give it a three out of five on our wake the neighbor scale. There are a couple of things that go into that. It's got a nice deep, mellow tone. It does have just a little tiny bit of drone on throttle mid RPM range, but in idle nothing there. When you're cruising on the highway, no drone whatsoever, just a nice quiet, deep, mellow tone. And at the same time a cold start it's not gonna kill you either. If you're worried about neighbors or anything like that, this isn't gonna be too, too loud. However, let's talk about that tone for just a second.As you guys just heard, like I said earlier, this is gonna be nice in deep little bit of a mellow tone. It's not gonna kill you if you're worried about drone on the highway. Now, with that being said, there is a little bit of mid-range RPM drone when you're on throttle, but I still think this is a very daily drivable exhaust. If you're looking to use your truck as a tool, take the kids back and forth to school, early in the morning a cold start with an exhaust like this one, it's not gonna wake your home neighborhood up. And I think that's a huge plus, in my opinion.So, let's dive into what is going to be making that noise. First things first, let's talk a little bit about build quality. Now, most of this kit is gonna be mandrel bent 409-grade stainless steel. Mandrel bends...all that means is throughout the length of any bends, the walls of the tubing, they're gonna be nice and smooth, allowing your exhaust gases to flow as smoothly as possible. 409-grade stainless steel, that's quality stuff as well. It's gonna be a mid-grade stainless. In fact, it's what most new cars get right off the factory floor nowadays.However, this kit is not all 409-grade stainless. These tips right here, these are gonna a higher quality 304. So, the part that you see most often, that is gonna be looking good for years to come. So, running through this kit from front to back, this is gonna open up with some 3-inch diameter piping right at our inlet pipe. From there you go right into the FlowFX muffler. Now, this is where things get interesting. That FlowFX muffler...that is the newest addition to Flowmaster's expansive lineup, and it does things a little bit differently. Their more traditional stuff has metal baffles in it. This is going to offer you a single stage pack. And this is where most of that deep mellow tone is going to be coming from. At the back of that muffler, this is where things get even more interesting. This is a dual exhaust version of this one. There are a couple of options. We'll touch on those in just a second. What's going to happen with this one? This is gonna go around the rear tire. Also, we're completely losing a factory resonator that was back here, right about here.So, that is going to contribute to our sound profile as well. These are gonna exit out the sides. This one over here is pretty much in the factory location and that's gonna be mirrored over there on the other side as well. With some awesome flat black tips, they're 4 1/2 inches in diameter. They got a rolled edge to them. They're angle cut. They got the Flowmaster logo on top and a really top of any blackouts build. Now, if you're not a fan of this exit location, Flowmaster does have a couple of options for you. If you're looking to save about 100 bucks, you can pick this up as a single exhaust as well. And that is basically gonna exit right here at the factory location and it's gonna be the same exact kit otherwise. Now, if you're looking for a little bit more style, they also offer a dual middle side exit. And that's gonna exit right in front of this rear passenger tire right there again for a little bit of extra style.Now, let's talk a little bit about pricing. This is where the FlowFX gets even better. Now, this is gonna be a dual exhaust made of 409-grade stainless steel. But with that said, this is still gonna be a pretty budget-friendly system only costing around 600 bucks in general which I think is a great return on investment. Considering build quality here again, that stainless steel and the awesome looks and tone, you really can't beat it. Flowmaster even throws in a limited lifetime warranty as well.So, let's get to the good stuff. Let me show you how to get this guy installed on your Silverado. Now, this exhaust is gonna be pretty basic bolt-on mod because of this guy right here. This is an extension pipe. If you have a long wheelbase truck, this is going to save you from having to do any cutting. Usually an exhaust like this one, they give you one really long inlet pipe. You have to trim it to size. Not the case with the Flowmaster, so this makes things a little bit easier. Now, being a dual exhaust, we don't have a hanger over there on the driver side. So we will have to install that, little bit of an extra step there, but nothing too bad.I'm gonna give this a two out of three wrenches on our difficulty meter, should take it most two hours if you come with the right tools. So, without any further ado, let me show you what tools you'll need and how it's done.Tools I'll use for this install will include the impact, an exhaust hanger removal tool, pry bar will work in place of this if you don't have one, 14-millimeter wrench, 13, 14, and 15-millimeter sockets and some rust penetrant spray lubricant like PB B'laster.So, the first tool I'm gonna use is the exhaust hanger removal tool. If you don't have one of these, a pry bar will work just fine. But what we're gonna start with is rubber hanger isolators here. We're just gonna get those off of our hangers. We're gonna leave this connected. We have a flex pipe up at the front so dropping this down, it's gonna make things a little bit easier and then to get this off finally we'll come back and loosen up that clamp right before flex pipe. So, first things first, exhaust hanger removal tool, if you got one. We're just gonna pop off these isolators.There's gonna be two more right behind our muffler. The last hanger we're gonna remove is back here by the tailpipe. Now, before you take this off, make sure you have a good grip on the exhaust because it's the last thing holding it up at the rear. So, all we're going to do [inaudible 00:07:05] here and do the same thing. So, we're just gonna let the tailpipe sit on our axle tube, then we can come back upfront. This clamp right here is pretty much the only thing holding this thing on, 13-millimeter socket to loosen it up. And we could slide that this way and remove our exhaust. Now, just be aware if you are working on the ground, you might need to make a few cuts to do this. But we're just gonna work back, get the front out and get this side over the axle tube, like so. All right, so now that we have our factory exhaust removed from our Silverado, I figured now would be the perfect time to build up our brand new FlowFX so we can get these two side by side and draw some big comparisons and big differences and similarities between both of these exhaust systems.First thing I wanna talk about is gonna be a big one. That's gonna be stainless steel quality. The majority of both of these kit is gonna be 409-grade stainless steel. Now, that's a mid-grade stainless. And basically that's what comes on every new car out of the factory, nowadays. It's exactly what you'd expect. The Flowmaster is gonna hold up just as well as this factory exhaust. Now, one thing I do wanna mention is we do have really high-quality 304-grade stainless steel for the tips, so, the part you're gonna see all the time, that's gonna be looking good for a really, really long time. Now, moving on to the differences between these two kits, we're gonna start up there at the front and work our way down all the way through. First thing, pipe diameter is going to be increased slightly. Factory is gonna be 2 3/4 inches. Our Flowmaster's going to be 3-inches on the nose, so that should help the flow. We're also losing a flex pipe up there, so that should clean up the exhaust flow a little bit.Big differences are gonna start right here in the middle with these two mufflers. Now, 31 it's big. It's restrictive. It's bulky. It does a great job. It's silencing that 5.3 engine note. Flowmaster FlowFX, not so much and it's a huge improvement for that. It's got that straight-through design. It's got that single-stage pack and it's not as hefty, which is going to be where most of our sound is gonna be coming from. Now, out the back of the FlowFX, we do have a dual exit. Piping diameter is gonna be a little bit smaller, 2 1/2 inches each over there. In my opinion, that's still an improvement over this factory pipe. Even though it is a little bit bigger, you get more volume with the dual exhaust. So that's gonna help you out with the exhaust flow. On top of that, we are also completely losing this resonator here, so that should help with the sound profile as well. The Flowmaster kit is gonna end in some awesome dual tips. They're 4 1/2 inches in diameter. They got a rolled edge to them. They're angle cut. They're embossed with a Flowmaster logo on top and they have an awesome flat black finish.Each of those are going to exit out the sides as well, rather than, kind of, at an angle, like the factory exhaust would. And speaking about this factory exhaust, this didn't have a tip on it to begin with, so an improvement all around. So, without any further ado, we're gonna go ahead and grab our inlet pipe. We're gonna get that, made it up to the flange with the factory clamp. And once we have that on the flange, we're just gonna get that in the hanger as well.Then we could slide that clamp over. I'm just going to get this semi-tight just to hold everything still. Now, the next thing we're gonna do is throw up our muffler. And, again, if you have that long wheelbase, you'd install that extension pipe here first and then do this, same thing you wanna make sure you have a clamp on here. Now, at the back of the muffler, make sure you install two with the smaller 2 1/2-inch clamps. Now, we can do our over axle pipe, I recommend starting with the one on this side first, just because it has a little bit of a longer hanger. That goes in there, push up on the muffler and get that studded in there.Now, our other over axle will pipe, this is gonna have two hangers on it. So, you wanna get the one at the rear, go in. Then come up here [inaudible 00:11:28] this one and slide that into the muffler. So, this truck was a single exhaust out of the factory. On the driver side tailpipe, we don't have a hanger here. So, this is what you're gonna get, look a little something like this. I'm just gonna get that studded on there like that. And you can see what hole that's going to go to. That one right there. Now, for now, we could swing that out of the way because we need to bolt that up. What we're gonna start with is a bolt and this big metal plate right there. And, from the inside, that's gonna come through like that. And then we put another metal plate on the outside, swing that hanger up. And we're gonna get the nuts studded on that in just a second. Now, once you have that in place and lined up, you can go ahead and tighten that down, It's 14 millimeters on both sides. So, that's pretty much the hardest part.Coming to the end, we're gonna take these elbow pipes right here with another small clamp and get those studded on the ends of each of our tailpipes and then we can do the tips. Now, that in place, we could throw on our tips on both sides, and we could tighten those down with 14-millimeter socket and a wrench. And then we're gonna do the same thing over here on the other side. Next, what we could do is hop over to the 15-millimeter socket. We're just gonna run through and tighten down all the clamps. Before we did the test, probably should have did this one because the impact basically makes that go like that. So hindsight is 2020, we're gonna get this guy right now. Last thing we need to do is go back to the 13-millimeter socket to get this factory clamp at the front.Now, in the kit, you're gonna get a few of these little lock washers here. And what these are intended to do is to go on the hangers to keep them from falling out of the isolators. And they're just gonna press on like so.Now, as you can see, that's going to keep that from back and out of there. If for any reason this does want to push that way, it's gonna get caught up on that. It's not gonna be able to move. They give you enough for all the hangers in the kit. But in our case, this isn't gonna be permanently on our truck for shooting a video. So, we're just gonna do this one. It's the same exact process for all the hangers though.Guys, that is gonna do it for me. It's also gonna do it for the Flowmaster FlowFX Dual Exhaust System with Black Tips and Side Exits, fitting all '14 to '18 5.3 Liter Powered Silverado 1500s. As always, guys, thank you so much for watching. Make sure you keep it right here in AmericanTrucks for all things Chevy.

      Product Information

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

      Features

      • Bold, Moderate Exhaust Sound
      • Improves Exhaust Gas Flow for Added Performance
      • Single Inlet, Dual Outlet Straight Through Muffler Design
      • Heavy-Duty Tubular Stainless Steel Construction
      • Dual, 4-Inch, Slant-Cut, Black, Ceramic-Coated Exhaust Tips
      • Twin Side Exhaust Exit Style
      • Designed for Double and Crew Cab Models
      • Fits 2014-2018 5.3L Chevrolet Silverado 1500

      Description

      Level-Up Your Exhaust Sound. The Flowmaster FlowFX Dual Side Exit Exhaust System with Black Tips is the ideal system if you’re looking to give your Chevrolet Silverado a moderate, yet bold exhaust sound upgrade. This exhaust produces a low rumbling sound during ignition that builds-up to a raspy, bass-heavy growl upon acceleration. Meanwhile, inside your truck, the sound remains quite moderate, allowing you to carry on a conversation or listen to your favorite music.

      Improved Performance. Besides transforming the sound of your truck, this Flowmaster dual side-exit exhaust also transforms its performance. The secret is its free-flowing design and straight-through muffler that works to ensure faster exhaust gas exit. This, in turn, reduces back-pressure, allowing your engine to “breathe” more freely giving you a bump in power and torque.

      Heavy-Duty Stainless Steel Construction. This cat-back exhaust is constructed from corrosion-resistant 409 tubular stainless steel. This system utilizes a 3-inch inlet tube and 2 fully mandrel-bent 2.50-inch tailpipes ensuring maximum rigidity and minimal turbulence. Additionally, this assembly features dual, black, ceramic-coated, 4-inch wide exhaust tips with a slant-cut design for rugged good looks. Finally, this exhaust is designed to exit your truck at an angle, preventing exhaust gases from coming into contact with anything you may be towing.

      Efficient Install Procedure. This side exit exhaust system mounts on your truck’s stock exhaust location using the factory hangers. No modifications to your vehicle are needed. Also, all mounting hardware is included for convenience.

      Application. The Flowmaster FlowFX Dual Side Exit Exhaust System with Black Tips fits all 2014-2018 5.3L Chevrolet Silverado 1500 Double Cab and Crew Cab models.

      Application Notes. This Flowmaster cat-back exhaust will not fit a 2-piece driveshaft.

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler
      • (1) Inlet Pipe
      • (1) Extension Pipe
      • (2) Front and Rear Tailpipes, Driver Side
      • (2) Front and Rear Tailpipes, Passenger Side
      • (2) Exhaust Tips
      • (1) Left Frame Hanger
      • (1) Rubber Hanger
      • (2) Backing Plates
      • (6) Band Clamps
      • (6) Hanger Keepers
      • (1) Screw
      • (1) Flat Washer
      • (1) Lock Washer
      • (1) Nut
      • (1) Cable Tie
      4.7

      Customer Reviews (32)

        Reviews of Flowmaster Exhaust products have an average rating of 4.6 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Silverado 1500

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