Hey, guys, Adam here with americanmuscle.com, and today we're taking a quick look at, listening to,
and, of course, installing the muffler delete axle-back exhaust system with polished tips,
available for the '15 and newer EcoBoost Mustang without Active Exhaust. You should be checking
this out if you're looking to get rid of your factory mufflers to save some money upfront,
getting a nice loud volume and deep aggression added to your
EcoBoost without picking up a full cat-back exhaust system.
Deleting your mufflers can make such a huge difference to the sound profile of your EcoBoost.
And as you just heard from our sound clips, as far as axle-backs go, I'm gonna give this guy five out
of five on our loudness meter. Really, you can't get much louder than just adding a straight pipe
as opposed to picking up an aftermarket muffler system. This is literally just gonna replace the
axle-back from the factory. You are gonna have to cut it off with just simple piping. Now this
tubing here is 2 and 1/2-inch mandrel-bent 304 stainless steel, and all of that is just gonna run
from the under axle pipes straight back to the new tips, which are 4-inch, slash-cut, double-walled,
polished tips. All this system being 304 stainless is gonna mean it's the highest-quality materials
in the category. And as far as the design goes, again, pretty straightforward, it's just a simple
tubing replacing those factory mufflers. The sound that you get from that is pretty loud as
far as axle-backs are concerned. This is gonna be something that gives you a nice loud bark at
start-up, especially cold start. And as it warms up, it's gonna give you a nice, crisp, raspy sound
throughout the entire RPM band, really. And you might get a little bit of drone inside
the cabin at highways speeds, but it's not gonna blow your eardrums out. Again, a little
bit on the louder side of the spectrum as far as axle-backs go because there's no baffling at all.
Now the pricing for this comes in right around 200 bucks, making it the most affordable
exhaust mod that you can possibly do when it comes to axle-backs and cat-backs. Obviously,
cat-backs are the preferred way to go for most people because it replaces the entire
exhaust system and you can really get custom with how you wanna hear that exhaust sound.
When it comes to an axle-back, you're just replacing the mufflers, the tips, and just
a little bit of tubing before that. With this guy, it's really just, again, a straight pipe.
Now the install for this, I am gonna give three out of three wrenches on our difficulty meter
because it is a cut and clamp. When it comes to doing an axle-back in general on your S550,
you do have to cut off your factory mufflers because the exhaust is entirely one piece off
the factory line. Now that cut's gonna be pretty simple, straightforward right there,
and I'm gonna give you the measurements for that in just a little bit. When it comes to doing this,
I will say before we get started I am using a pre-cut exhaust system,
so I'm gonna mark the lines where you guys would be cutting on your factory exhaust,
and then I'm gonna swap them out with our pre-cut option to move forward from there.
Now when it comes to doing this, it will take you about an hour, maybe two from start to finish
depending on your pesonal experience. You wanna have a cutting tool of your choice on deck. But
if you're not comfortable tackling it yourself, no shame handing it over to a professional to
get it done properly. Now I'm gonna show you every step of that process here. Let's get started.
Tools used in this install include an impact gun, 16-millimeter deep socket,
Sharpie, tape measure, and a cutting tool of your choice.
All right, first step here, we don't even have to unbolt anything, I just wanna show you guys where
the cutting's gonna happen. Now we already have a pre-cut exhaust that I'm gonna swap this out
for. But I wanna show you guys where you guys will make the cut at approximately the right
position here. You wanna make sure you have a Sharpie, and you wanna make sure you have a
tape measure here on deck. I'm gonna start on our passenger side at our muffler. You wanna go to the
hanger that connects to your subframe and look at this bracket here, right there. You wanna put the
end of your tape measure right up against that and then wrap the pipe like that. All right, so
the tape measure's gonna sit right like that. Now at this point, you wanna mark 11 and 3/4 to about
12 inches into the pipe. So right here we have 11 and 3/4, 12 inches. You wanna cut right there.
The new pipe will come to about here. So you wanna cut a little bit extra so that they slip inside of
each other and connect properly so that you can clamp them down. So that's gonna be where we're
gonna make our cut. And, again, like I said, I already have a pre-cut exhaust, so we're not
gonna be cutting this one, but you wanna grab your Sawzall and, of course, measure twice, cut once.
That's the rule. You're gonna cut straight through there. A Sawzall with a thin metal
kerf blade will do the trick. Cut right through it with a cutting tool of your choice. So now you can
measure and do the same thing on the other side as well. Same thing on this side. I'm just gonna
put that up against the bracket, bend it with the pipe itself. I know that 11 and 3/4 is the spot.
So that's gonna be it right there.
All right, make your cut. I'm gonna swap them out for our pre-cut one so we can move on to the
install. Once you have this cut, you can just slip your muffler out of the hanger and set it aside.
Now before we get started comparing our factory mufflers to our new muffler delete kit,
I wanna quickly go through what exactly we have laid out on the floor here. On my right is a full,
complete, one-piece uncut factory exhaust off of an EcoBoost. To my left is what I just took
off of our EcoBoost, what we just cut. This is our factory resonator pipe with the tailpipes going on
under the axles at the rear. This situation should still be on your Mustang on the vehicle. I took it
off here just to show you guys a quick side by side before we throw it back on. Now you can see
we made our cut up here just behind the muffler next to those factory hangers. So right here on
the side. And that's gonna connect to our new pipes. Now the new pipes are pretty simple to
explain. It's a straight pipe. It's 304 stainless steel so it's really high-quality materials,
and it's got mandrel bends, which means that the bends in the pipe getting it around that angle
isn't kinked. It's not gonna restrict airflow. It's a 2 and 1/2-inch pipe that goes into a
4-inch, slash-cut, double-walled, polished tip. It's basically the same size diameter as your
factory pipe. The only difference is the big old muffler is not in the way. So with that being
essentially a straight pipe with the exception of your factory resonator, you're gonna get a little
bit more horsepower and torque out of this because your factory mufflers were an airflow restriction,
and, of course, you get the volume and the rasp that you heard from our sound clips earlier on.
The tips are obviously very similar to the factory one but just a little bit more polished. They're
a little bit bigger, so they'll fill out the cutouts in your rear valance a little better.
Little bit aggressive-looking. But they are more traditional polished finished. If you're not into
the polish, there are, of course, aftermarket tips out there in black, carbon fiber, a number
of different options for you to choose from to fit your personal preference. But this is gonna be for
the guys looking for that more traditional rear end look, just without the mufflers. So at this
point, it's pretty easy to install. I'm gonna throw this back on the vehicle, which, again,
should be already on yours, then we'll go ahead and connect our new pipes.
All right, so now that we have that cut, you can see we have a clean cut here right where
we marked our line. So what we're gonna do now is take our driver's side, is what I'm starting on,
we're gonna take the driver's side pipe. I have it lubricated. I'm gonna insert the hanger into
that isolator. Make sure I have a clamp on this side, and I'm gonna bring it around
and slip it right on to the pipe that we cut. You wanna make sure it's lining up
with the exhaust cutout where the tip is gonna be. Tighten down that clamp.
All right, same thing on the other side.
All right, now you can wrap things up with your tip. Make sure you have a clamp on there,
slide the tip in place, and tighten down the clamp.
All right, same thing on the other side to wrap things up.
That's gonna wrap up my review and install for the muffler delete axle-back exhaust
system with polished tips, available for the '15 and newer EcoBoost Mustang
without Active Exhaust, and you can get yours right here at americanmuscle.com.