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BBK True Dual Exhaust Conversion Kit (05-09 V6)

11 Reviews
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  • Item #56169
  • MPN #4011
  • Market Price $517.49
  • You Save 13% ($67.50)
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  • Required for a True Dual Exhaust conversion
  • Improves exhaust flow for more power
  • Raspy Race Car Growl
  • X-pipe design
  • Includes two new Catalytic Converters
  • Fits 2005-2009 V6's with a GT axle-back
True Dual Exhaust. Now you can easily convert your V6 Pony to a true dual exhaust with the help of a BBK Dual Exhaust Conversion Kit. Just install this BBK catted X-pipe along with the 2005-2009 GT axle-back of your choice, to give your Mustang the impressive good looks and great V8 sound of a GT. Race Car Growl. This free flowing BBK Performance Dual Exhaust Conversion kit for your 4.0-powered V6 will not only increase power, but with its modern "X" crossover pipe design it also adds a crisp raspy, race car growl to the sound of your exhaust.

Aluminized Steel Construction. The BBK X-pipe adapter kit features durable 2.5” diameter mandrel bent aluminized steel tubing, and features two brand new Hi-Flo Catalytic Converters. Kit contains catted x-pipe, driver side pipes, clamps, and instructions. Reuses he existing passenger side V6 exhaust pipe.

Application. This BBK True Dual Exhaust Conversion Kit is designed for use on the 2005 to 2009 V6 Mustangs in combination with an aftermarket or stock factory dual 2005-2009 GT axle-back exhaust system. Installation Note. When buying a dual cat-back or axle-back exhaust kit for your 2005-2009 V6 Mustang, you will need to select the "2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit" from the drop down option menu above to properly install your new exhaust.

Technical note: Must be used with a stock or aftermarket GT axle-back exhaust system! A template for cutting out the 2nd exhaust tip in the 05-09 V6 factory rear bumper is included.

Mustang Fitment: 2005 2006 2007 2008 2009 Details

What's in the Box
  • (2) Catted down pipes
  • (1) X-pipe
  • (2) Pipe sections to connect driver side muffler
  • (5) Clamps
  • (1) Cutting template for rear bumper cover
Installation Info

Installation Time: (approx) 3 Hours

Difficulty Level:Advanced mechanical skills required.

Tech Specs
Mid Pipe Specifications
Style Mid Pipe: "X" Type Headers Required: Shorty or Stock Manifolds
Piping Material: Aluminized Steel Piping Size: 2.5"
Catalytic Converter: Yes Fitment: 2005-2009 V6 Mustangs
  • V6 - 05, 06, 07, 08, 09

Most Helpful Reviews View All

Overall Rating 4.9/5 Write a Review

Finally done after about 8 hours of trial and error on this exhaust under the car in my garage. I have never installed any type of exhaust and have basic mechanical skills. but let me tell you... when

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Helpful (2) (0)

Still smiling

I have a 2006 V6 and coupled this with the Bassani straight through mufflers. It is loud but when I step on the gas it is so awesome, the notes I'm getting are great. Not sure this is what I want for long

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Helpful (2) (0)

Customer Photos (2) View All

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Q & A (11 Questions, 8 Answers) Ask a Question

Will these catalytic converters bolt on to stock headers. I ripped up the ceramic in my cats. I removed the muffler and drove around with it off until I installed the new muffler. All the ceramic clogged my muffler and it blew off on the highway. If these cats will not bolt on to my stock headers, which headers should I buy.

Brenton Year: 2005 Model: V6

Question Resolved
Good Question (0) (0)
  • Yep! The new hi-flow cats in this kit bolt right up to the stock V6 exhaust manifolds. This True Dual Conversion Kit does require a GT Axle-Back and another set of hangers for a complete installation.

    Helpful (6) (0)

    Best Answer

    LisaS Year: 1992 Model: GT

Show 2 more answers

Welding? Does this kit REQUIRE any welding? I am deciding between this and the magnaflow exhaust kit and I really would like to use this kit seeing as I can pick my mufflers.

Kody Year: 2008 Model: V6

Question Resolved
Good Question (0) (0)
  • No welding at all. I just installed it yesterday

    Helpful (1) (0)

    Best Answer

    Brenton Year: 2005 Model: V6

    Top 1000 Contributor

Show 2 more answers

will pacesetter long tube headers work with this exhaust system?

Zach17 Year: 2008 Model: V6

Question Resolved
Good Question (0) (0)
  • Probably not due to LTH needing a shorty style mid pipe.

    Helpful (0) (0)

    Catch22COP Year: 2012 Model: GT

    Top 10 Contributor

Show 1 more answer

Reviews (11) Write a Review

  • 5 Stars .91 91%
  • 4 Stars .09 9%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%

out of 5 stars

11 Customers Recommend this Product

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume: 4.909091 4.9/5
  • Exhaust Note: 4.727273 4.7/5
  • Fit & Finish: 4.909091 4.9/5
  • Bang For Your Buck: 4.8 4.8/5
Filter By Sort By
  • 5/5

    Still smiling

    July 27, 2012

    I have a 2006 V6 and coupled this with the Bassani straight through mufflers. It is loud but when I step on the gas it is so awesome, the notes I'm getting are great. Not sure this is what I want for long road trips but crusing in town is great. It was a real task getting everything together I also spent a good 8 hours on this project. Most of the work was getting the old items off, very hard to get nuts loosen while on your back. Putting the new items on was pretty easy I had a pretty decent gap from the x pipe to the existing piping on the passenger side but the drivers side was flawless and easy to put together.


    Year: 2006 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Sioux Falls, SD, USA

    Helpful (2) (0)

  • 5/5


    July 18, 2012

    Finally done after about 8 hours of trial and error on this exhaust under the car in my garage. I have never installed any type of exhaust and have basic mechanical skills. but let me tell you... when this new true dual exhaust is installed and paired with the magna-flow american thunder gt axelbacks, it will make your v6 into a mean racing machine. almost sounds like a v8 around 2000 rpms. loud exhaust but i really recommend it.


    Year: 2009 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 seattle washington

    Helpful (2) (0)

  • 5/5

    LOVE IT!

    December 22, 2012

    SOO LOUD! almost deafening above 3500 rpm! installed at the same time as new JBA headers and FRPP stinger mufflers and BAMA 89 tune. noticed a MASSIVE gain pull off the line. NO DRONE! nice DEEP rich note. couldnt be more happy! only thing that didnt work was that we discovered the CAT's that come with it are NOT CA SMOG LEGAL! you can reuse your old ones but need custom extensions made to fit the gap.

    Top 500 Contributor


    Year: 2005 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 Sacramento, CA, USA

    Helpful (3) (1)

  • 4/5

    rough install, amazing product!

    May 27, 2014

    Since I bought my mustang, dual exhaust has been something I've wanted to do and when the internals of my stock catalytic converters broke loose, I figured it was the perfect time to do it. The fact that this true dual system came with a pair of high flow cats made it perfect for my situation since my stock ones needed to be replaced. I planned on doing the entire install in my driveway but rusted bolts between the cats and the manifolds caused too much trouble so I took it to a shop. They did it quickly and fairly cheap too so I would recommend taking it to a shop for the install unless you have a torch to get the manifold bolts red hot to remove them and are able to get that torch around the egr tube and past the heat shields. Other than that this product fits flawlessly and sounds even better. I went with Pypes pyle bomb axle backs and the sound compared to stock is extremely loud. I always get looks and compliments from gt drivers. People even ask if its a v8 it sounds so good! Overall I recommend this product to anyone who wants to really open up the sound of your v6


    Year: 2006 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Bettendorf, IA, USA

    Helpful (1) (0)

  • 5/5


    February 16, 2014

    I have to say, I was a intimidated at first to install the system myself. One mistake I made was I decided to remove the system one week before the new system arrived. Unfortunately I couldn't get one of the exhaust pipes off. So i cut it off and when I got the new system it required that pipe and I had to take it to a muffler shop to have it re welded. luckily it only cost me $25 so it was a very inexpensive mistake. Overall I think it's a great system it was easy to install and it sounds amazing.I paired it with the flowmaster Outlaw exhaust and it even sounds better than my wife's GT.


    Year: 2005 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 10+ Broken Arrow, OK, USA

    Helpful (1) (0)

  • 5/5

    Great sound, easy install

    January 20, 2014

    Again installed on 08 4.0 with Xcharger. No issues with clearance, they send 5 clamps, so no need to worry about your rusted old one. Fit was good, bolts right in with no issues, though the O2 sensors are a pain. I installed them before the instructions said to, because it makes sense to tighten them off the car when you can work easily. Tough to do on your back but definitely possible. I paired them up with the shorty headers and some GT take-off's and they sound great. Makes my mustang sound as mean as she is.


    Year: 2008 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Ontario, Canada

    Helpful (1) (0)

  • 5/5

    Love it, great sound, great price.

    December 20, 2013

    I had this kit installed on my 2005 V6. I originally needed a new y-pipe and cats. The OEM Ford parts would have cost $1,400. On top of that, my original passenger side exhaust pipe had been cut and modified by the previous owner, so I chose to redo my entire exhaust system from my headers to my exhaust tips instead. I paired this kit with: BBK Ceramic Tuned Length Shorty Headers (05-10 V6) Item #56100 Pypes Mid-Muffler Catback Exhaust Kit (05-10 GT) Item #20019 GT500/CS Rear Bumper Cover w/ Diffuser - Unpainted (05-09 All) Item #53674. Don't forget to buy the SR Performance Stainless Steel Exhaust Hanger Kit (05-10 All) Item #20021 for the driver side exhaust. You're V6 does NOT have these hangers. I didn't use the exhaust pipe from this kit because I installed the Pypes catback kit, but the pipe would have been a perfect fit. NOTE: This kit is designed for an axleback exhaust kit. I went with a catback exhaust kit for two reasons. 1) I needed a second exhaust pipe to replace the old, modified passenger side exhaust pipe. This kit comes with ONLY one exhaust pipe for the driver side. It is designed to reuse the original passenger side exhaust pipe. The OEM Ford pipe was priced at roughly $120. This made purchasing a catback exhaust kit about the same price as an axleback kit. 2) I specifically wanted the Pypes M-80 Bullet mid-mufflers. They are one of the only aftermarket mufflers for a V6 that, in my opinion, sound good at all times. They do not have a loud drone on the interstate that is sometimes heard from other kits like the Flowmaster American Thunder mufflers. These mufflers have a deeper tone and they are much throatier sounding. At the same time, they are louder, but not too loud. And, they are significantly cheaper than most other kits, but they yield great results and are of excellent quality. Overall, the shop only asked for $300 to test fit, paint, and install the new rear bumper, and they asked for $500 to install my new headers, cats, x-pipe, exhaust hangers, and catback exhaust. Had I only installed this kit, the shop had priced it at a maximum of $100. The $500 was for only installing the headers, but they said they would just install everything for that price as a packaged deal. The shop said all of the parts fit perfectly and installed easily. American Muscle had everything delivered to me quickly, and all of the packaging was superb. There was no doubt that all items would be undamaged and in perfect shape due to the generous amount of packaging material used inside of the shipping boxes. The new cats are great. They are high flow and allow much more exhaust flow compared to the original cats. This paired with all of the other mentioned parts has really opened up the sound of my V6. People have already been complimenting my new sound, and I often see people look at my car as soon as the exhaust revs up. There have been several times when people have asked if I have a GT. If you buy this kit and pair it with the right parts, you will not be disappointed. Take your time, research all of your parts, listen to V6 audio clips, and make sure to ask lots of questions. Once you make your decision and get your parts installed, you will have a huge smile on your face every time you fire up your Mustang.


    Year: 2005 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Kansas, USA

    Helpful (2) (1)

  • 5/5

    Great X-Pipe Upgrade !

    August 27, 2013

    This X pipe is amazing! So much better than the stock exhaust flow its incredible. The X sound lets you hear that raspy tone when you punch it. I installed this myself and have 2 tips. 1 - Do yourself a favour and get the hanger kit with it 2 - Install the whole system before tightening down all the clamps. This will allow you to adjust the system and keep it level, if you tighten all the clamps as you go, by the axleback you will be compensating your angle and may cause you to have rub down by the pumpkin and control arms. The cats are great upgrade in this kit instead of the restrictive ones you have right now. Definitely recommend this product !

    Top 25 Contributor


    Year: 2006 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 3 Windsor, ON, Canada

    Helpful (1) (0)

  • 5/5

    Good Dual Exhaust Kit

    September 25, 2012

    Let me tell you, this dual exhaust is loud. I was running no muffler before this and now i have this with Pypes Violaters and its just as loud, maybe even louder. The kit fit great, you might just have trouble getting the o2 sensors out because it gets so hot there. I reused the head studs for the header because there was no reason to replace them. I was looking for a deep exhaust note. This is fairly deep until around 2800-3000 RPM. When you hit 3000 RPM's it gets very raspy. I have violaters, maybe if you get different mufflers like flowmasters or magnaflows, it will sound better up high. But down low it is fairly low and rumbly, sounds good. Great for a 6, i now get tire chirp gunning it from a dead stop without holding the brake. Overall, probably the best kit out there for power and volume!

    Top 1000 Contributor


    Year: 2005 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 New Jersey, USA

    Helpful (1) (1)

  • 5/5


    August 26, 2013

    This is a great product. The install was very easy considering I have a garage lift and when I paired them with a rear section borla Atak mufflers this thing sounds MEAN and loud!!! Every mustang owner should have dual exhaust on their ride! Great fit and finish!


    Year: 2009 Model: V6 Driving Style: Daily Driver new york

    Helpful (0) (1)

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