3 Mods + 113 HP Gains- 2015 Mustang EcoBoost

3 Mods + 113 HP Gains- 2015 Mustang EcoBoost

Hey, guys. Today we are going to show you
exactly how well the 2.3 EcoBoost engine reacts to aftermarket modifications. And with this
car, there is no better place to start than with the turbo and opening up some airflow
around it. So we are going to throw in a new exhaust system from the turbo back along with
a cold air intake, and we’ll wrap it all up with a custom tune to dial it all in and push
some more boost. This EcoBoost was still working with the factory air box when it came to us
so one of the first things that we did here was swap that out. It’s worth mentioning that
the factory air box for the S550 isn’t a bad intake setup. It’s pretty efficient and functions
well, but as you start to mod the car, it will become restrictive. And that is something
that we wanted to make sure we didn’t encounter, and so we chose the C&L intake, because if
you are looking for performance gains, it has one of the best designs on the market. The key to this design is going to be this
air box. It’s an enclosed air box, one of the only on the market and it has a removable
lid so you can get to your filter easily. The enclosed air box is also going to protect
the filter from elements with inside the engine compartment and, more importantly, it’s going
to help keep warm air from inside the compartment from being used by the intake, and this is
a technique that works. We saw some low intake air temps on the Dyno and this leads me to
another cool thing about the housing and that’s that it taps into the factory cold air duct,
which brings cool air in from the grill instead of using warm engine compartment air. This
is a really nice feature in my opinion and it gives this intake the benefit that you
don’t see from many other aftermarket intakes for the S550 EcoBoost. A few other real quick notes about this intake,
it’s got a classic reusable air filter, and can be cleaned and reinstalled. It’s also
got a nice sized intake tube which is important if you are looking for the most gains possible.
Any gains over the stock setup are going to be coming from the intakes with larger filters
and intake tubes. Of course, that’s not all we did with the
car, but we’ve got to get the car in the air to show you where we’ve done some of the more
serious modding. In the world of turbos, one of the first and most beneficial power mods
that you can do is get a new downpipe, so that’s exactly what we did. The factory downpipe
on the EcoBoost is pretty restrictive so this downpipe is going to be for those people that
are looking for less restriction, which ultimately means some improvements in performance. An aftermarket downpipe can offer a big improvement
in performance because it helps the airflow of the turbo, where you pretty much want things
as unrestricted as possible so you can spool the turbo more quickly which is where your
gains will come from. Two big things about this downpipe, it’s a 3 inch down pipe which
is an upgrade over the stock downpipe an it’s one of the only 3 inch downpipes that are
available right now. The other thing is this is a cat-less or off road down pipe so we
are talking even less restriction. It’s a stainless steel downpipe as well, another
great thing about this downpipe is that it gives you an option when it comes to the rest
of your exhaust. Borla includes an adapter for this downpipe so you can still use a stock
exhaust if you want, but of course, we didn’t want to do that here. The catback we got on here today is a Borla
ATAK catback, and that’s actually a two and a quarter inch system. One thing I will say
is that’s it’s great to see a 3-inch downpipe that will still with a two and a quarter inch
system because you can still get the max benefits from the 3-inch downpipe. Now the Borla ATAK
is not only a high-quality system being a full 304 stainless steel and great fitting,
but it’s also one of the loudest and most aggressive systems for the turbo 4 cylinder
Mustang. I’m talking a ton of volume and a ton of turbo noise. Now all of these exhaust mods definitely made
a huge difference in sound, even that downpipe. Even though the main idea behind an aftermarket
downpipe is to help give the turbo unhindered airflow, an aftermarket downpipe is also going
to give you more sound too. And since this particular down pipe is an off road or un-catted
downpipe, you can expect an even louder result, like the sound you just heard. So while the
combo of these mods makes for a beastly sounding turbo 4 cylinder, I’d actually like to see
what exactly what it all equates to on the Dyno, and what we are looking at in terms
of power and torque gains. But, before we do that we need one more thing that’s going
to tie all this together for us, and that’s going to be a Cobb Accessport. We went with
the Cobb Accessport for the fast downloads and the on the fly adjustability that it offers.
But, enough about parts, let’s get this thing on the Dyno. Of course, we ran the car before installing
any mods so we could have some baseline numbers to compare to, and that baseline run gave
us numbers of 245 horsepower and 277 foot-pounds of torque at the rear wheels. With all of
our parts installed and with the Cobb Accessport tune, the car made 311 horsepower and 360
foot-pounds of torque making for a peak gain of 66 horsepower and 83 foot-pounds of torque.
As with any Dyno result, peak gains are always nice to know but the real thing I look for
is difference throughout the curve. The curve is going to show the changes that were made
in your driving RPMs and these are the things that you are actually going to notice performance
wise when you’re driving. So, throughout the curve, we are seeing gains here 113 horsepower
in the 6400 RPM range and 96 foot-pounds of torque right in that same range. Now these
are some pretty big curve gains more than 100 horsepower and almost 100 foot-pounds
of torque in the curve. This graph tells me that we should have a totally different feeling
car to drive, so with all of that being said, I really just want to drive this thing. So
let’s take it out for some road time. All right, so first thing to address is obviously
going to be our new exhaust tone. It’s very loud, very loud. You guys already heard that
in the sound clips. Like I mentioned, it’s definitely that raw turbo 4 cylinder sound,
and that’s undeniable. The Borla 3-inch downpipe, like I said, uncatted with the Borla Atak
which is the loudest catback, turbo 4 cylinder all
the way there. Especially when you start getting
into the upper RPMs, the one good thing about it is obviously, it’s not going to be for
everyone. It’s definitely not for everyone. But if you are looking for lots of turbo noise,
a lot of sound, a lot of volume, then this is where your setup is going to be. Everyone
is going to hear you coming. You can hear every single shift. You can’t really hide
so I hope you’re a good driver. So, if we want to kind of test out drone at
cruising RPMs, we are just over 2000 RPM right now, we’re at like 2205 we’re not quite at
2500 yet. You can definitely hear that there is an aftermarket system on this car. But
when you are driving down the highway, I wouldn’t say that this is anything that your eardrums
are going to be bleeding. You’re not going to be terribly upset at the end of a long
trip with this car. You can hear that there is aftermarket exhaust on it like I said,
but it’s not like a crazy loud drone. If we go up to 2500 RPM, it kind of does drone out
a little bit. You can hear it right there. You know, it’s a little bit more droney at
2500 RPM. But I’m really surprised it’s not any worse, especially considering how loud
this system is and the type of volume that it has. Another thing that I did notice is
that there is, you know, a pretty decent amount of crackle on decel with this car, you know
when you are off throttle especially if you are above 3000 RPM, and you go to a downshift.
There is a little bit of popping. For people that are looking for that, it’s actually a
nice feature. It just adds a little bit something more to the system. One thing that I am really interested to see,
and I’m really happy about is the tune. This tune had great results, a ton of power and
a ton of torque gains under the curve. And I can feel a huge difference already in the
car. It’s one of the most exciting things. You buy a couple of mods, you spend a little
bit of money and you get a tuner, and it ties everything together. There is just so much
of a difference in drivability in this car. From factory after 5000 RPM, this thing just
fell on its face. And we saw on the Dyno graph that it still falls, there is definitely a
curve down, but it’s not nearly what it was from factory. And what I can tell you right
away, just from driving in some of the lower RPMs, is that this thing…you can definitely
feel the huge low-end torque gain. It drives so much better. Honestly, it really wasn’t
much fun to drive before. It kind of fell on its face and it was a little disappointing
honestly for me, but now, you kind of just want to lay into it a little bit. Yeah, you can definitely hear turbo spool
from inside the car especially in the lower RPMs. You kind of lose it a little bit from
inside the car because the system is just so loud. And even just laying into the car,
like that was a little test right there, just laying into the car from lower RPMs and seeing
how it goes through the RPMs, that’s a test of the tune and that felt great to me. The
car just pulled like 2500 right now, lay into it. It actually sits you back into the seat
a little bit, which was something that it definitely didn’t do before. So, it’s definitely
a little bit more fun to drive. Even at idle, this thing is a lot louder.
It’s just louder all the way around. The tune is definitely nice. It definitely makes you
want to go through those gears a little bit faster. Like I said, throughout the curve
over 100 horsepower and almost a 100 foot-pounds of torque, that is something that you are
definitely going to notice. There is no not noticing that. So the combination of this downpipe, and the
catback, I can hear it right now because I’m actually just driving around a parking lot.
You actually get some of that turbo gurgle that you hear a lot of times with turbo cars
that have more free exhaust. There’s like a little bit of gurgle to it, like right before
the turbo starts spooling. So, like I said if you are really interested in hearing a
lot more of that turbo noise, then this exhaust setup is definitely going to be your good
option. It’s going to be your go-to option. All right, let’s try to jump on it a little
bit. Do a little more. You can definitely feel over 5000 RPM, there
is a little drop-off. But to be completely honest with you, the car does pull before
it starts to hit that drop-off. You can feel the turbo going to work. It drives a whole
lot better overall. So this definitely isn’t a sound or a setup that’s going to be for
everyone out there on the market. It’s loud, it’s definitely in your face, and it’s definitely
that raw turbo 4 cylinder sound. Really, what we started out to do here, at
the end of the day, was see how these cars react to some mild bolt-ons and a mild tune,
and I think that this was a great test of this car’s ability to rapidly pick up power
and torque, all throughout the curve, low-end, top-end with just pretty much mild stuff.
This is all stuff that novice mechanics can do in their garage, in their driveway. This
isn’t serious stuff that you have to go to a garage for. So I think ultimately, at the
end of the day, it’s great to see that these cars respond so well to just a few mods that
really only take a few hours to do and you get a great, fun result. This thing definitely gets up to speed a lot
quicker, now after the fact, which is really nice because it’s kind of effortless. It feels
effortless now whereas before it would be like “All right, let’s get up to 50 miles
an hour. Come on, girlfriend.” But now it’s pretty effortless, and it’s actually great. All right so that’s going to wrap up this
EcoBoost build. Overall, I’d say I’m really happy with all of the gains that we saw from
a few minor bolt-on modifications paired with a tune. I hope you guys enjoyed the video.
And as always, for all things Mustang, keep it right here at AmericanMuscle.com

About the Author: Michael Flood


  1. The 'old man' in me would've liked to see a aftermarket catted downpipe. Most of us would like our new car to pass state inspection after we mod it!

  2. Im sorry but the more modern Mustangs have rear lights that are cheap looking plastic. Also, sorry but even after the after market exhaust system, the car doesn't sound mean at all.

  3. It doesn't have that throaty muscle sound and needs a bigger turbo. Not happy with this as I actually have to turn off my car through drive throughs because they can't even hear me when my factory turbo ute sits idle (after market 3" stainless steel exhaust system, after market intercooler and performance after market air flow filter kit and catch can added) and I'm getting diesel specialists in Wingate to formulate a system for a larger turbo which won't be a straight bolt in.

  4. my ute has installed rear caddy light, recessed plate, de badged, door poppers with other after market mods but will be getting an after market larger turbo as per the diesel specialists and my ute already sound really nice n drone throaty with huge pick up but really just lacks G force of which Im really wanting is more acceleration as it has heaps of top end speed but needs G force.

  5. Damn too bad they sound like shit. i really like these. but ughh. it sounds too buzzy. if they made this thing sound like a srt4 neon. now that would've been the shit!

  6. Are those chambered mufflers? Maybe thats why it sounds like shit. Needs a straight through design like magnaflow or Jones. Or just no muffler at all. My 33 year old 2.3 turbo ford sounds WAY deeper with no raspy sound.

  7. What I don’t understand is, if ford says these cars are rates @ 310hp from the factory, then how come when the car went on their Dyno, it was rated @ 245hp?
    Because if that’s the case and my car ‘19 Mustang eco-boost has 245 instead of 310 I am going to be super pissed. And I run ‘93 gas also.

  8. How many of these mods depend on 93oct for gains? We're stuck with 91 here CA. Be nice to see some installs with 91. I also like how she's hinting at, "yeah this exhaust is annoying.

  9. I live in California and am thinking of the 2019/20 Mustang Performance Model with 330HP Turbo 4 from the RS Focus!

    Do you Offer any Mods that are 50 State Street Legal to Mod the Newer 2019/20 Mustang Performance?…Thanks and God Bless!

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