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BBK Catted X-Pipe (05-10 GT)

Market Price $517.49 You Save 13% ($67.50)
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  • Item 56121
  • MPN# 1770

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Features, Video & Details

  • Improves Exhaust Flow and Sound
  • Raspy Race Car Growl
  • High Flow Catalytic Converters Included
  • 2-3/4" Mandrel-Bent Aluminized Tubing
  • Fits 2005-2010 GT and Bullitt

Review & Installation Video

Review & Install Video

Hey, guys, Stephanie with here with my review of the BBK Catted X-Pipe available for 2005 to 2010 GT Mustangs. In this video, we're gonna be talking about a few different things including the sound of this X-pipe, the materials and construction, and the install. I'll talk more about this later, but the install for this one is going to be a one out of three wrenches in the difficulty meter, since it's an easy install for anyone. This X-pipe from BBK is going to be for the GT Mustang owners out there that are looking for an affordable X-pipe that's going to maintain the use of cat and that's gonna give a loud and raspy exhaust mod. This X-pipe is gonna make a big difference over the stock H-pipe and it's also one of the most affordable X-pipe options out there. Looking more to the mid-pipe itself, we're looking at a 2¾ inch mid-pipe that's gonna work with the factory headers or a set of BBK Shorty headers. The X-pipe is manual bent which is typical in exhausts, but the purpose of manual bending is to deliver smooth airflow. The smoother the pipe is, the smoother the airflow will be which helps with velocity. Now, there are a few different types of materials that exhaust components are made out of, and the material of the mid-pipe is really gonna drive the price point. This mid-pipe is aluminized tubing, and that's what helps to keep the BBK components more price friendly than some of the other options that are out there. So, aluminized tubing has some upsides and some downsides as well. Like I already said, this type of material is gonna be more budget friendly. The sacrifice that you make here, however, is that the metal is prone to rust and have corrosion over time, especially if it sees harsh road conditions. But if you live on the West Coast, or your car isn't a daily, then it might not be a big deal to you. If you're looking for a rider-dice system that's going to hold up and be everlasting over years and years, then you're better off shopping for a 304 Stainless Steel system instead. This is catted X-pipe and normally an X-pipe is gonna give more of a louder raspier sound, as opposed to the deeper note of an H-pipe. The Cardster [SP] high-flow race cats so they're gonna flow more than the factory cats would for sure, but I'm gonna hit again that these are high-flow race cats, and that means they might not pass emissions, they might not be legal and there is always that chance of a check-engine light. Circling back around that price, you're looking at spending between $400 and $500 for this X-pipe right here. I will point out that catted mid-pipes or catted pieces of exhaust in general, are gonna cost more than off-road versions will. BBK does have an off-road version of this mid-pipe which is gonna be the same thing, just without the cats, and it's gonna cost a little more than $150 less, so, that's always an option. But at the end of the day, you're looking at both power and sound gains here, since the X-pipe will open up exhaust flow and net you a touch more horsepower and give you a change in sound as well. But just keep in mind that your gains will change depending on your setup and your tune. The install of the X-pipe is not difficult at all. It's just a basic mid-pipe swap that doesn't involve removing any other items or any cutting. You're looking at a one out of three wrenches in the difficulty meter and about an hour's time in the garage. If you don't have much experience in this area, it is a good idea to get a knowledgeable helping hand, but either way, this is a mod that most people, even first timers, can tackle themselves. If you do tackle this yourself, just know that you can do it on a jack and stands, but a lift would make it easier for sure. Like I said before, the mid-pipe is easy enough to install. You need a few tools for the install, but at the end of the day, you're just looking at a few exhaust clamps here to get the factory mid-pipe out and the new one into place. You do have some pieces here with this X-pipe, so just make sure to hang everything loosely until you have the exhaust all lined up, and then tighten everything down. And don't forget that you should re-tighten everything once you're passing heat through the mid-pipe, just to make sure you won't have any exhaust leaks. Wrapping things up here, the BBK X-pipe is going to be a good option for anyone with a GT Mustang that's looking at running BBK Shorty headers or the factory headers. It's an aluminized steel X-pipe that comes with high flow race cats and, as always, you can check this mid-pipe out some more online for yourself. I'm Stephanie, and for all things Mustang, keep it right here at

Increases Overall Performance. Add even more horsepower and torque to the rear wheels of your GT or Bullitt with a BBK Catted X-pipe. A BBK catted X-pipe will greatly improve your pony's exhaust flow to increase overall performance. BBK's in-house dyno-testing has shown solid gains of 12 to 20 horsepower.

Race Car Growl. This free flowing BBK x-pipe for the 2005 to 2010 Mustang's not only increases power, but it also adds a crisp raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

Durable BBK Construction. BBK's X-pipes use a free-flowing 2-3/4" diameter CNC mandrel bent aluminized tubing and a merged X crossover to improve flow. And features High flow catalytic converters to provide a significant horsepower increase over the restrictive stock cats.

Application. This BBK Catted X-Pipe is specifically designed to fit the 2005-2010 GT and 2008-2009 Bullitt Mustangs with either BBK's 1612 Series shorty headers or the factory manifolds and a dual catback exhaust installed.

Fitment: 2005 2006 2007 2008 2009 2010 Details

What's in the Box
  • (1) X-pipe
  • (1) Driver side catted down pipe
  • (1) Passenger side catted down pipe
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard Length "X" Type Headers Required: Stock Manifold or Shorty
Piping Material: Aluminized Steel Piping Size: 2.75"
Catalytic Converter: "Yes" Fitment: 2005-2010 GT Mustangs
Will it fit my Mustang?
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09, 10

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Most Helpful Reviews

Great pipe

It ships in 3 parts, the two cats and the X. Removing the 02 sensors was probably the hardest part of the installation. Everything fit right, but my car doesnt have rubber mounts for the hangers on the ...

Read More
Helpful (10)


what a difference from the stock cats. My stang sounds like a different car compared to just the axle backs

Helpful (6)

Overall Rating 4.8 out of 5 stars
Read All 42 Reviews

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26 Questions / 9 Answers

Ask a Question

Will this work with an Automatic GT? 2010 Mustang gt to be exact.


  • Yes it will. Mine is an auto.


Show 1 more answer Helpful (2)

Will this work with a Borla Atak Cat Back exhaust system


  • The Borla ATAK Cat-Back Exhaust, item 29029, will absolutely work with this BBK Catted X-Pipe.


Helpful (1)

I have a 05 GT, with Roush supercharger and tune. I want to replace the H pipe with the BBK Catted X-Pipe, I live in south texas and have to have the cat's for Ems. at present I have Shorty Cer headers, and Roush cat back exhaust installed. the question is will I have to have the Roush tune updated for this install or is it just plug and play?????


  • Hi, A retune is not required for the installation of this x-pipe.

    Chris J

Helpful (1)

I have stock headers and fr500s axle back . I like the way it sounds, but looking for more sound! Where i live i cant do off road. Now, these catted bbk will keep the american muscle car tone and rumble , but its gonna be more louder,or the tone will change? And also after install i m gonna have check engine light ? I dont have a tuner and dont want one. Thanks!!


  • When you are swapping your stock mid-pipe for an aftermarket one, the sound will change especially with this mid-pipe since it is an X-pipe. This X-pipe will give you more of a raspy sound. So yes, your tone will slightly change as it will a more aggressive growl to your exhaust. Also, as you can see in the picture before and after the cats there are O2 bungs in which to plug in the O2 sensors. With the O2's properly installed into the bungs, you should not have a check engine light appear. This will also not cause you to have to re-tune your vehicle.


Helpful (1)

Do you need 02 sensor extensions? Been talking to a few people at car shows and half of them said they needed 02 extensions, mainly for the passenger side, for their aftermarket mid pipe. I have a an 08


  • It's recommended but no you do not need them. The fitment will be tight but if you remove the clips holding the wires you will have all the room you need. Then just use the holes from the clips and ziptie the slack


Show 2 more answers Helpful (1)

Hi I'm looking to get a x pipe but I want to stay away from setting off my check engine light. I was wondering if this product tends to do that and if so what would you suggest doing to increase sound without having a check engine light. Thanks


  • Since this mid-pipe has the cats on it you will not run a check engine light and this would be a good way to help improve the volume of the car!


Helpful (0)

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Customer Reviews (42) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.666667 4.7
  • Exhaust Note 4.666667 4.7
  • Fit & Finish 4.666667 4.7
  • Bang For Your Buck 4.638889 4.6

  • 5/5

    July 07, 2011

    Great pipe

    It ships in 3 parts, the two cats and the X. Removing the 02 sensors was probably the hardest part of the installation. Everything fit right, but my car doesnt have rubber mounts for the hangers on the pipe, not sure about other vehicles though.... as for the X pipe. The sound is incredible. Its a bit raspy but it screams. Definitely better flow than stock.


    Year: 2008 Submodel: Bullitt

    Helpful (10)

  • 5/5

    May 17, 2011


    what a difference from the stock cats. My stang sounds like a different car compared to just the axle backs

    MO MO

    Year: 2010 Submodel: GT

    Helpful (6)

  • 5/5

    August 07, 2011

    great product

    Easy install, sounds great, improved. Gas mileage


    Year: 2006 Submodel: GT

    Helpful (4)

  • 5/5

    Installation Time: Shop Install

    March 07, 2012




    Year: 2009 Submodel: GT JUPITER,FL

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    January 30, 2012

    It sounds much more raspy and loud!

    This exhaust only took me about 30 mins to install tops, using my friends impact gun and lift it was a breeze! Try to use some bolt/nut loosener before and after taking the nuts off just in case you might want to change to something else, even though i do no think that will be the issue at all. The loudness went up dramatically in the sense of "loud" but since i also bought the 60 series American Thunder axle back a while ago from AM as well it still has that "Now thats a Mustang!" sound everyone loves to hear going down the street! It fit perfectly, BBK also includes hanger units on the product as well, but my stock 2010 GT was not equipped with the rubber holsters so i did not use them, but i recommend getting at least one O2 sensor extender for the passenger side sensor though. Like i said it sounds AWESOME and is definitely worth every penny and i feel it a lot in high end as well! Should feel it even more after my CAI intake and SCT tuner install.


    Year: 2010 Submodel: GT Florida

    Helpful (3)

  • 5/5

    June 08, 2017

    Love the sound!!!!

    It works great more power lot smoother the engine is sounds and runs, more deeper sound and I love how the sound is adjustable to loud and quiet.


    Year: 2010 Submodel: GT

    Helpful (2)

  • 1/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    January 16, 2017

    Upset with this product

    I purchased this X-pipe in September and had it installed shortly after getting it. At first I loved the way it sounded and the compliments I received. As of last week it started sounding awful. I thought at first I had an exhaust leak so I brought it back to the shop to have it tested. They checked all the welds to make sure and they found nothing. Basically the BBK Catted X-pipe went out on me only after a few months. It sounds like it is broken up inside and like a hissing cat. Pretty upset that I paid $450 for a product to only lasted a few months. Now I need to spend more money to find another x-pipe to replace this one.


    Year: 2010 Submodel: GT

    Helpful (2)

  • 3/5

    Installation Time: Afternoon

    March 13, 2013

    Sounds great, terrible fit

    Install took approx 2 and a half hours on a lift by myself as a novice level enthusiast. getting the upper O2 sensor off was a pita. The driver side catalytic converter is rubbing up against the wall of the chassis BAD. there are to hangers on the x pipe but no where to hang them. Car sounds great when you dont hear the cat hitting the car. I'm gonna have to take it to a welder or figure out a way of stopping it. Due to fitment issues I am giving this x-pipe 3 stars. Sound wise, my car screams with the pypes pype bomb axle backs. Almost too loud and I love loud.


    Year: 2009 Submodel: GT Kaiserslautern, Germany

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    May 26, 2012

    Good low note

    We had to switch from the off road x pipe to the x pipe with cats to get rid of the check engine light on a 2010 GT. Definitely not as loud as the off road version, but has a nice deep throaty sound and definitely not as raspy. Install wasn't much different than the off road except the top nut on the passenger side is a little more difficult to get to, but NEARLY as bad as with the stock exhaust.


    Year: 2010 Submodel: GT Dallas, TX

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    July 11, 2017


    Fit right in place!! No o2 extenders needed. Sounds AMAZING!!!!!! Very loud, and still has amazing exhaust tone


    Year: 2010 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 26, 2017

    Mustang gt

    Wow! Paired with roush extreme axle back exhaust, amazing!


    Year: 2006 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 06, 2017

    Bbk xpipe

    It sounds good and easy to install .I would recommend them to anyone who has a mustang


    Year: 2007 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    March 28, 2017

    Love it

    Perfect sound Gain more HP My stang is a beast now


    Year: 2008 Submodel: GT

    Helpful (1)

  • 5/5

    July 18, 2016

    Cats meow

    They installed perfectly. The sound is awesome. Worth the money.


    Year: 2006 Submodel: GT

    Helpful (1)

  • 5/5

    July 06, 2016

    Perfect tone

    I chose this x-pipe to replace my Pypes Race x-pipe for two reasons: pass AZ emissions and my Pypes Race x-pipe was honestly a little loud when rolling the throttle at low rpm in 5th gear. I had my local Ford Dealer install it, so I can't comment on the installation. But the tone is awesome and it's nice to finally pass emission but still have a little heat coming from the pipes.


    Year: 2006 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 12, 2016


    I paired this with a roush extreme catback and my roars definitely recommend


    Year: 2009 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 08, 2016

    Great Mod!

    I absolutely love my BBK catted x pipe. It gives the car a great growl that is raspy but not too bad. My setup is BBK catted x pipe with flowmaster outlaws, car is loud, but not so loud that you would get pulled over. Install went great, had a little trouble getting the o2 sensor unplugged on the passenger side located on the manifold. My recommendation is to access this from the top side instead of bottom. Would definently reccommend this product!


    Year: 2005 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    April 04, 2016

    Money well spent

    Prior to having the BBK Catted X-Pipe installed, I had the SLP Loudmouth Axle-Back Exhaust. They were pretty decent, but lacked any real tone at low RPM's. I drive my car with the goal of getting the best fuel economy possible, so I am always under 2500 RPM. Adding the BBK has allowed my V8 to make a statement at low engine speeds! To me, it sounds quite a bit like a 1960's muscle car, as the exhaust rumbles in a similar fashion unless you get on the throttle. When on the throttle (15-20 at most) it starts to sound like the GT that I am most familiar with at my local show. Definitely has me stoked for when my local weekly car show starts up! Cannot wait to bring my new GT in. Thanks American Muscle for providing me with such a great product!


    Year: 2010 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    May 20, 2015

    Great product, great sound

    Ok I know probably a lot of you would say "what is he thinking?" I recently cammed my Mustang 2008 GT M Thumpr cams it sounds great but having a straight pipe or Xpipe offroad was really loud. It made my home shake literally. And to be honest where I live I have to cross the border a lot and getting with the CBP everytime I needed to cross back was not something I was willing to do. The good thing is that now I can have the rough sound of the cams but without the super noise. I really recommend this catted pipes to anyone looking for a rough sound on a bearable level.


    Year: 2008 Submodel: GT Las Cruces

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    April 08, 2015

    Dat sound Doe

    Got my x pipe quickly from american muscle. SHES ALIVE!! Sounds great when you get on it and i felt a slight high end power increase! Driving normally sound is not so loud almost like stock. When you get on it she sounds mean! Install took around 2 hours with a lift taking our time.. Couldve been done in an hour if we wanted to. Install was really simple. Great Product overall! Wish it wasnt so expensive for cats but gotta pass emisions :(


    Year: 2006 Submodel: GT glen rock, NJ

    Helpful (1)

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