Borla Cat-Back Exhaust System 2-1/2" ATAK Stainless Steel With 4" Polished Tips Mustang GT 2015-2017

Myself and the rest of the video team here at CJ's have worked hard to give you as many different 2015 exhaust videos as possible. Then when you're deciding what exhaust system you want, you've got a lot of different sound clips to make sure the sound is exactly what you're looking for.

The most recent system we installed is the Borla S-Type on my 2015 Mustang GT. So far I've got to admit, it's probably my favorite sounding exhaust system. Ever since we installed it, the number one comment we're getting is what about the Borla Atak?

The Atak is Borla's most aggressive sounding exhaust system and a lot of you are wondering how it's going to sound on the 2015 Mustang. Today we're going to answer that question by installing the Borla Atak Cat-back on my 2015 GT.

Well, the name Atak obviously sounds aggressive. It's actually an acronym. It stands for acoustically tuned applied kinetics. What does that mean? Basically these mufflers are deigned by Borla to be as loud as possible and to keep that loud volume through the entire RPM range.

They actually designed the Atak muffler specifically for each vehicle it's engineered for. The Atak Cat-back system is a two and half inch system leading through a set of Atak mufflers with four inch polished tips.

The entire system is man-drilled bit and features an ex-pipe in place of the heavy factory resonator. The entire system is a bolt-on and no cutting is required.

We'll start of by giving you some stock sound clips then we'll get to installing our Borla. For this installation we're going to need a lift or a jack and jack stands, 3/8 ratchet, 13mm shallow socket, 15mm socket, 8mm allen key, 6 inch extension and a flat blade screwdriver.

Like we've shown you many times in the past, removing the stock system is actually quite easy, but we do suggest a second set of hands to make it easier. The first thing you want to do, remove the two bolts for the two rear brackets.

Don't worry about removing the bolts. They actually have little hooks so they're not going to fall off. Now we'll move forward and loosen the clamps that hold the resonator to the front pipes. You want to bend this tab up. There's a little stud that will stop it and slide the clamp down.

You can pop these little hangers off here. Now the weight's going to go forward and you sort of shimmy the system forward off the rear clamps. We'll remove these clamps off the factory pipes. First we're going to install the factory clamps back on the factory pipes. We're going to start the installation of the Borla Atak by putting the new X pipe up in the place using the factory clamps.

Now you want to snug those up. Don't tighten them all the way, just get them snug. Now move onto the tailpipes. Before we install the tailpipe we want to put a clamp on the connection of the X pipe side and then reinstall the factory hanger as well.

Just hang that for now and move onto the muffler. With the muffler, put the clamp on first. What you want to do is put it up into the rear hanger, just kind of behind the valance. Now go back through, adjust and tighten down our clamps.

Then repeat the process on the other side. The last step is to install the screws in the factory tailpipe hangers. Your installation is finished.

All right, let's see how the Atak sounds. The Atak is as advertised. If you're looking for loud and aggressive, this definitely does the trick. Like I said, the big thing with the Atak is that it keeps the same kind of volume when you're driving under load. Let's take it for a ride and see how it sounds.

I know the Borla Atak is a system a lot of you guys have been waiting for. As far as the sound, like I said, it's as advertised. It's loud, it's aggressive. Even in the car, when you get on it you definitely hear it. I'd say it's every bit as loud as the MRT with the Roush we tested earlier which at that point was probably the loudest exhaust we've had on a car.

As you mount the Borla though, right now I'm at 2100 RPM cruising on the highway, you don't even hear it. No drone, no nothing. It's almost like a stock exhaust. You get a little bit of a deep tone, but literally you can barely hear it on the highway. Down shifting it on it, totally different story.

I'm probably two miles from CJ's right now. I have no doubt they can probably still hear me. It's funny, cruising in fifth on the highway, we're like at three grand, you hear it. It's nice aggressive sound. You can really hear the tone. Sixth, gone.

This is definitely a system that you could cruise all day on the highway and have zero problems. If you want to make some noise, downshift away. I'm on the highway now, right at two grand on the nose where a lot of your mufflers are going to show the worst drone possible.

Here, barely can hear it. There's a little bit of a deep tone if you listen for it, but you honestly, it barely sounds different than stock.

Sitting in idle it's also pretty quiet. You can hear the exhaust, but you kind of have to listen for it. You hear a little bit of a low deep sound, but nothing like the MagnaFlor or other one's we've heard. It's also pretty quiet in idle, but it's nice good sounding tone to it.

The current system I run on my car is the Borla S-Type and I would say the Atak has a similar tone to the S-Type. It might be a little raspier, but it's most definitely louder.

What can I say? The Borla Atak is as advertised. It is loud, in your face. As far as the Borla systems go, it is definitely the most aggressive. It sounds kind of like the S-Type, just a lot more volume. If you're looking for a loud, aggressive, in your face exhaust system, the Atak is going to be a perfect choice.

Like all Borla systems, the fit and finish is top notch. The installation's pretty straight forward. For more exhaust videos for your 2015 Mustang make sure you subscribe to our YouTube channel and check out CJPonyParts.com for the best selection of 2015 Mustang exhaust.