(approx) 2 Hours
Light to Moderate mechanical skill required.
Hey, guys. Today we're gonna be taking a look at and installing the Borla ATAK cat-back exhaust for 2005 to 2009 GT Mustangs. You're gonna wanna be checking this cat-back out if you're looking for a high-quality cat-back that's going to deliver a ton of volume and a ton of sound.This cat-back comes with Borla's ATAK mufflers in it, and they're the loudest mufflers in the Borla lineup. On a scale of one to five, with one being a quiet upgrade and five being a very loud upgrade, I'm gonna call these a solid four out of five. They can definitely be a five out of five under wide open throttle. The rest of the cat-back is two and a half inch mandrel bent stainless steel, which is gonna be a great option for you guys out there that are looking for corrosion resistance. The cat-back costs about $770. I'm gonna call it a two out of three wrenches on the difficulty meter when it comes to the install. We'll go ahead and show you how to get it on your car now.For this install, we used a 3/8 drive cordless impact gun. You can always just use a 3/8 ratchet if you want to, a 13-millimeter socket, a 15-millimeter socket, a flathead screwdriver, a rubber mallet is always nice to have just in case, and if you need to cut your exhaust off like we needed to, you'll need a Sawzall with a fresh blade on it.All right, guys, to start your stock exhaust removal, what you'll need is a 15-millimeter socket. We're gonna go ahead and try to loosen these clamps here. Now, if your clamps or your exhaust look anything like the one on this car here, you're gonna want to make sure you have a lot of WD-40 or PB B'laster. It's really gonna help you get these clamps undone.All right, guys, if your clamps are stuck like ours are, all I'm doing is taking a flathead screwdriver and I'm prying the clamp open here. All right. And we are gonna do the same thing on the other side over here. So I'm just wedging the flathead screwdriver in between the clamp here and working it loose.All right, guys, now we're gonna go back here and undo this clamp right here right at the muffler. All right. And then, of course, we'll do the same thing on the other side. All right. And we're gonna do the same thing with a flathead screwdriver on these clamps back here just to make sure they're releasing. All right, guys, at this point, I'm gonna take my mallet. I'm gonna bump both of these clamps forward just so I can try to disconnect this connection right here.All right, guys, so at this point, our exhaust is not disconnecting right here at the over axle pipes to our axle-back. So what I've done is I've tightened up the clamps by the H-pipe up there and I've got the Sawzall. And I'm just going to cut the connection myself. So, if you're going to do that, make sure you guys have safety glasses, a fresh Sawzall blade, and you're cutting in a place where you're not gonna be cutting through anything or doing damage to any other parts. So we're gonna go ahead and just cut through right here right by our axle-back.All right, guys, now what we're gonna do is we're gonna undo these two 13-millimeter bolts that are holding our exhaust hanger in place just because you guys can see the way that this hanger is right here. It's gonna be really hard to get this out. So we're just gonna undo these bolts right here.All right, guys, we're gonna do the same thing on the other side being very careful of our fuel lines here. That's why we're cutting away from them. All right, guys, so we're gonna do the same thing on this side as well with removing this hanger. All right, guys, from here, what we're gonna do is loosen our clamps back up. And I'm gonna take my mallet, knock the clamps backwards, and then pull down the over axle pipes.All right, guys, with the factory cat-back out of the way, the first thing we're gonna do is grab the straight pipes that Borla gives us. We'll transfer our clamps over. We're gonna go ahead and get these installed on the H-pipe. We're gonna leave all the clamps loose for now until we have everything lined up and then we'll go ahead and tighten them down as we need to. So I'm just sliding my clamp over the pipe. I'm gonna ahead and get this installed on the H-pipe.All right. Now we're gonna get our over axle pipe installed. Just make sure you have a clamp here before you install your over axle pipe. I'm gonna go ahead, loop this over the axle. Now, I'll make the connection here. Like I said, we are gonna leave everything loose for now. We're gonna go ahead and do the other side.All right. So once again, we'll go up and over the axle. All right, guys, so now at this point, we're ready for the axle-back. I have transferred over our factory hanger from our factory axle-back. I'm gonna go ahead and get this in place. Then what I'm gonna do is get my hanger in place. I'm just gonna get my two bolts started.All right. And we're gonna go ahead tighten these down. All right. Now we're gonna go ahead and tighten down our other clamps on this side. What I'm doing right now is I'm taking a peek at the tip and making sure that I'm lined up correctly. All right, guys, so we're gonna do the exact same thing on the other side. One thing to note real quick, if your car is equipped with the hangers that go near the tip right here, you can go ahead and swap over those hangers as well. If not, you can go ahead and install this without it. It will be just fine or you can also purchase the additional hangers and put them right here if you want to. We're gonna go ahead and install this without those hangers. So we're gonna slide this onto our over axle pipe. We do have a clamp on our axle-back already.All right. So now we're gonna go through and tighten our clamps on this side. All right, guys, that's gonna wrap up this review and install. Keep in mind you can always check this cat-back out more online right here at americanmuscle.com.
Subscribe to our YouTube Channel
Features, Description, Reviews, Q&A, Specs & Installation
Technical Note. Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation.
Fitment: 2005 2006 2007 2008 2009
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
March 09, 2020
Great quality material easy to install. 10/10 recommend!Helpful (0)
September 17, 2019
over axle pipes wouldnt fit had to re use stock onesHelpful (0)
June 02, 2019
This exhaust has the best sound! Minimal drone as well!!Helpful (0)
May 03, 2019
Awesome sound, easy installation
Ordered the kit about 2 weeks ago, took roughly 4 days to arrive. Too eager to have it installed, I opted to install it myself instead of going to a shop. I put the rear end up on jack stands and unfortunately had to do some cutting on my old exhaust as the owner before me had it welded quite poorly. The Borla kit went in extremely easy and the clamps are super tight! Each peice is labeled left and right to make it timeless to figure out which are which. I do recommend some wratchet hand wrenches if you can, makes getting to the exhaust supports above the muffler a lot easier to work on. I couldn’t believe the sound on first crank, (catted h pipe) it was still pretty loud, not too obnoxious which is what I was looking for without an Off road pipe. Very deep, can be a bit poppy if you rev it highHelpful (0)
April 29, 2019
Borla atak exhaust
well has a mean and aggressive exhaust note perfect for those looking for that aggressive soundHelpful (0)
March 18, 2019
One Word: Epic
This system oozes quality and performance from the moment the box arrives at your door. Impressive packaging with no damage. Includes two Borla stickers and a hat. Installed using basic tools and jack stands. Took around two hours to install. Fit and finish are flawless. Once you turn it on for the first time, you will wonder why you didn't do this years ago. Perfect exhaust note and great volume. Wont wake the neighbors unless you mean too, but if your trying you can set off car alarms in a parking garage. Perfect system.Helpful (0)
January 20, 2019
Not for the faint of heart...
I have had this full system, coming off BBK ceramic LT, into BBK catted X-pipe since Borla first offered it. As I wanted by 2008 Bullitt to sound like my '69 Mach I had to go with a nice lope type cam the Ford hot rods are what I have. Not going to lie, if you put your foot down these certainly roar, I cruise the freeway windows down and nothing loud inside the car, though friends have said that they hate being behind me when I punch it!Helpful (4)
January 05, 2019
I have this cat back paired with the pypes catless h-pipe and the cold starts in the morning are absolutely ridiculous! My neighbors know exactly when I leave for work every morning. Once it idles down its much quieter. Driving around town is very loud but on the freeway it’s actually very quiet with minimal drone. Install took me about an hour to drop the old catback and put this one on. Borla is definitely one of the pricier options but it is by far the best quality, best fitting, and best sounding exhaust I’ve had (this is my fourth set up). It’s a very deep and throaty tone and sounds like a true muscle car. I’ve convinced my friends with 5.0’s to switch to Borla with how my 4.6 sounds! I highly recommend Borla!Helpful (5)
October 02, 2018
Made my Mustang GT sound exactly how it’s supposed to sound. Don’t bother with getting a cheaper exhaust this is the sound you want.Helpful (5)
June 14, 2018
This system is awesome, the sound is better in person than any video on this product. Definitely recommend these mufflers if you are looking for an aggresive systemHelpful (9)
Would this fit a v6 I'm looking for a nice exhaust to make my v6 sound mean. Would this work and what would I have to add to make it work? Any other specific products that could satisfy my need, if this does not work?
You wouldn't be able to bolt this on your V6 as is since your factory exhaust is a single. You would be able to install this ATAK Catback if you combined it with the Pypes Cut and Clamp X-pipe. It reuses your stock catalytic converters and allows for the use of a GT catback. I've attached the x-pipe below so you can take a look. Hope this helps!
Do you have a video showing how loud it is? All I see is a install video
We do not have a sound clip, however, ATAKs are on the list for the absolute loudest mufflers we have to offer, so you won't find anything louder we have to sell.
Why won't this system fit an 07-09 Shelby GT500?!
Hi. Unfortunately, this Borla ATAK Cat-Back Exhaust is designed to fit 05-09 GT's and will not fit on a 2008 GT500 due to different mounting points. With that being said, Borla does offer an ATAK Cat-Back exhaust that will fit a 2008 GT500. You can find it on our website at: http://www.americanmuscle.com/borla-atak-catback-0709gt500.html
I have a 2005 Mustang GT. Is there a difference in sound on the Borla atak axel-backs VS. Borla atak cat-back? All your paying for is a stainless over axel pipes on the catback? Cause if the mufflers are the same and sound the same, and all I would be paying for is a stainless over axel pipe. Then the Borla Atak axel-back should be fine to purchase? Help clarify please.
Tone wise, both the axle-back and cat-back would be the same. However, for the volume of the exhaust as well as the performance gains, the over axle pipe size does make a difference as they would be less restrictive from the OEM.
Will this fit with the pypes longtube headers and shorty xpipe combo that i ordered ? Thank You!
This exhaust will work with the Pypes long tube headers and shorty mid pipe.
The only H-pipe we would offer at this moment for shorty headers will be either the Magnaflow or Pypes H-pipe, both of which would be a good option.
The Borla ATAK Cat-Back Exhaust installs after all emissions control devices, so emissions legality will not be an issue. We are unable to verify vehicle noise regulations and what the specific exhaust volume will be with this exhaust on your car.
This catback would be about a 7.5-8 out of 10 in volume, it is one of the loudest systems carry.
This exhaust will not work on the Pypes true dual exhaust as the tubing sizes will be different.
Hello, Installing long tube headers would still require you to change out your mid-pipe. The length of the headers will require a mid-pipe with a specific length.
The Borla ATAK Cat-Back Exhaust can work with any headers that we offer. Long tubes will provide the largest power gains, however shorty headers provide better ground clearance and an easier install.
This Borla ATAK Cat-Back Exhaust is manufacturer to fit under the 2005-2009's only. This catback will not connect tot any hangers and will not align the the floor board, the axles and the bumper.
Hello! The Borla ATAK Cat-Back Exhaust does not require a tune.
The Borla ATAK will be louder than the Borla Stinger as the ATAK produces the highest available dB levels to maximize the sound of the exhaust.
This cat-back should work perfectly fine with your Shelby GT.
(approx) 2 Hours
Light to Moderate mechanical skill required.
What's in the Box
|Piping Material:||Stainless Steel||Tip Material :||Polished Stainless Steel|
|Piping Size:||2.5"||Tip Size:||4"|
|Muffler Type:||Straight-Through||Fitment:||2005-2009 GT|