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BBK Off-Road X-Pipe (99-04 4.6L)

Market Price $249.99 You Save 12% ($30.00)
Our Price

$219.99

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  • Item 56130
  • MPN# 1669

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    Features & Details

    • Improves Exhaust Flow and Sound
    • Raspy Race Car Growl
    • 2-1/2" Mandrel-Bent Aluminized Tubing
    • For Off-Road, Track Use
    • Fits 1999-2004 GT, Bullitt, Mach 1, and SVT Cobra
    Increases Overall Performance. Add even more horsepower and torque to the rear wheels by eliminating those power robbing catalytic converters with a BBK Off-road X pipe. A BBK X pipe will greatly improve your pony's exhaust flow to increase overall performance and sound.

    Race Car Growl. A free flowing BBK x-pipe 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. This BBK direct replacement X-pipe features 2.5” diameter CNC mandrel bent aluminized tubing and a merged X crossover to improve exhaust flow. Additional features include factory O2 sensor locations, and OEM style die-stamped flanges all to ensure a perfect fit.

    Application. Specifically designed to fit the 1999 to 2004 4.6L Mustangs, including the GT, Bullitt, Mach 1 and SVT Cobra. This Off-Road X-pipe is a direct fit replacement for the stock mid pipe.

    Technical Note. This BBK product is not legal for use in emission restrictive states.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    What's in the Box
    • (1) Off-road X-pipe
    • (2) Down Pipes
    • (4) Bolts
    • (8) Flat washers
    • (4) Lock washers
    • (4) Nuts
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Standard length "X" Type Headers Required: Shorty or Stock Manifolds
    Piping Material: Aluminized Steel Piping Size: 2.5"
    Catalytic Converter: No - Off-Road Use Only Fitment: 1999-2004 GT, Bullitt,
    Mach 1, Cobra
    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 99, 01, 03, 04
    • GT - 99, 00, 01, 02, 03, 04
    • Mach 1 - 03, 04

    2000 GT Mustangs may require modification to stock manifold studs for proper fitment

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    42 Questions / 8 Answers

    Ask a Question

    Will I get a CEL? By putting this o/r x-pipe on will I get any CEL's because with this I'll have no cats. Thank you

    going2ownastangsoon

    • Yes you will, if you buy some plug in mil eliminators it will fix your problem or if you have a tuner you can shut the codes off

      John88

    Show 2 more answers Helpful (1)

    can this be used as shorty x-pipe later on ? my current exhaust setup is stock headers and stock h-pipe paired with flowmasters. I've been thinking about getting this x-pipe for a long time but my only concern is that at some point later on, i will be getting bbk long tubes (money willing) and I'm not sure if i can then just simply remove the 2 extension arms that connect the X figure in the pipe to the factory headers and re-use the x-pipe (which would technically be bbk's shorty x-pipe) with my long tube headers ? I looked at both bbk's shorty and normal x-pipes and the only difference i could find was the 2 extension pipes (how ever i could be wrong).

    AMINGT2

    • Unfortunately not. The tubing lengths on this off-road mid-pipe are not the same as the shorty mid-pipe and therefore, they can not be interchanged. If you switch from stock headers to the long tubes later on, you will need to purchase the shorty mid-pipe at the same time for proper fitment.

      LisaS

    Show 1 more answer Helpful (1)

    how much horsepower will this give me and how would the sound change if i already have flowmasters and a h pipe

    jyairej

    If I got this and installed them to my stock headers and then later changed to longtubes could it be ajusted to fit them

    ThomasB

    • The BBK Off-Road X-Pipe will be incompatible with long tube headers.

      Rob D

    Helpful (0)

    I recently installed this on my 2004 Mustang GT. I noticed that when installing this it hangs down lower than the factory H Pipe did. I just wanted to make sure it was supposed to be lower or if I did something wrong and need to make further modifications. For example I can no longer go over speed bumps and often times scrape when pulling in and out of some driveways.

    PeterR

    • The BBK Off-Road X-Pipe are known for hanging a little lower than the stock mid-pipe. A way to help with this is to unbolt it so it is loose then hold the X-pipe up while tightening the bolts this will help with some clearance.

      Ricky36

    Helpful (0)

    Does the pipe work with automatic trans in a 01 mustang

    OlindoH

    • The BBK Off-Road X-Pipe will work with an automatic 2001 Mustang GT.

      AMKaitlynn

    Helpful (0)

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    Customer Reviews (100+) Write a Review

    Overall Rating 4.4

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:$100-$250

    • Loudness / Volume 4.63871 4.6
    • Exhaust Note 4.367742 4.4
    • Fit & Finish 4.167742 4.2
    • Bang For Your Buck 4.490323 4.5



    • 4/5

      Installation Time: Afternoon

      February 21, 2018

      Sounds great!

      It’s super loud and a head turner. It was cheap to install and it was a great add on to my mustang!

      Justin

      Year: 2003 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      February 13, 2018

      Loudest one on the road

      I went to 3 different car meets, not one person was louder than me. I’m running this x pipe and custom fabricated straight pipes and my car just roars. every time I get the car on the road someone is trying to race me. You could definitely feel a decent power increase so this x pipe is definitely worth the money.

      Scottyboy

      Year: 2003 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      February 06, 2018

      Great sound

      Just what I wanted sounds great and fitment was perfect gives my gt that raspy sound and growl when switching threw the gears AM shipped it out when they said they was got it when promised thanks AM keep up the great job.

      FrankG

      Year: 2001 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 18, 2018

      X pipe

      Love it. Got rid of the factory pipe and put this on. Paired with my borla axle back, sounds amazing. Gives it that mustang sound!

      Haps

      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      January 04, 2018

      Great service

      I'm very happy with the product. It only took 1 day to ship to me which was great. Thanks American muscle.

      Jake

      Year: 2003 Submodel: Mach 1

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      December 31, 2017

      Awesome

      This X-pipe is definitely a step up from the factory H-pipe for my 04 GT. It is definitely worth the money. I am planning to pair it with the borla stinger catback as I have heard that is one of the better setups. Easy to install, took about an hour and a half at home.

      AndrewP

      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      December 31, 2017

      Its loud

      Lets just say my neighbors aren't happy. I started it before putting my mac mufflers back on and my neighbors started looking out their windows lol.

      JacobMoore

      Year: 2002 Submodel: GT

      Helpful (0)

    • 1/5

      December 29, 2017

      X pipe

      If they would have sent all the parts, could have gotten 5 stars,missing a clamp

      KennethW

      Year: 2002 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      December 26, 2017

      Let it breath

      Give the car the sound it needed. Great guality, perfect fit around my automatic transmission. You will need to delete rear o2 sensors.

      DennisM

      Year: 2003 Submodel: Mach 1

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      December 17, 2017

      Great Buy

      I am impressed with the product overall. Good for the money especially and sounds great!!

      BCole

      Year: 2001 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Weekend

      December 06, 2017

      Fits great...sounds awesome!!

      I was able to bolt up this pipe in less than an hour and let me tell you it sounds great. If you drive a 2004 you will need 02 sensor extensions because this pipe has the downstream 02 sensors in the locations for the 99-03 mustang, for some reason on the 04 the locations are in a different location. Keep in mind though especially if you live up north any car older than 10 years will have rust on it especially on the exhaust. I had a couple issues with stripped bolts up near the flange connected to the headers. When it was all said and done I had to re thread the studs which was time consuming and annoying. Otherwise I would definitely recommend but keep in mind this there is a strong chance that you could run into issues and it may not be as easy to install as advertised.

      PeterR

      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      November 12, 2017

      X pipe

      I can definitely tell the difference. The sound is great and the power is amazing

      ByronW

      Year: 2003 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      November 07, 2017

      Don’t listen to the bad reviews!

      Hardest part was removing the original h pipe. After that everything was a breeeze. Didn’t have to extend anything for the 02 sensors. Everything fit like a glove. This thing is looooud. I downshifted into 4th on the freeway and there was a highway patrol pulling someone over on the other side of the freeway and he heard me!

      EnriqueR

      Year: 2002 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      October 23, 2017

      Raspy

      If you like rasp this x is awsome I have it paird with borla atak cat back I see heads a turning when I drive by

      BobbyHill

      Year: 1999 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      October 16, 2017

      Sounds good, had to make modifications though

      When installing the passenger side went on easily. Drivers side down pipe was not able to seat correctly because the flange was flared too big. Had to grind it down and shape it. Made a hour installation into 3. Otherwise very happy with the product and backed by borla s types it turns heads everywhere.

      TannerL

      Year: 2003 Submodel: GT

      Helpful (1)

    • 4/5

      Installation Time: Afternoon

      October 15, 2017

      Great sound

      Overall great Flange on exit was bent which made fitment off, but with a few adjustments fit Came scratched all over, but under car so not really worried

      BWILL

      Year: 2001 Submodel: GT

      Helpful (0)

    • 4/5

      October 12, 2017

      Unique sound, decent quality

      American muscle couldnt be better. Every order is on the money. Lucky for me they are next day shipping being so close. The pipe hangs a little lower than the previous Mac and stock pipes. Fits decent otherwise. No leaks for me. Sensors could be in a bit better spot so the wires dont hang. Sounds super raspy with flow 40's. Going to try SSS cat back and see how they sound.

      DanielM

      Year: 2003 Submodel: Mach 1

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      October 10, 2017

      Great!

      Great product! Made my Mustang sound so much better.

      AntonioP

      Year: 2002 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      September 25, 2017

      BBK Off Road X-Pipe

      I have this x pipe connected to my SLP Loudmouth exhaust and let me tell you it is LOUD! I love it! Definitely a head turner for sure but also got to stay lowkey around police and that’s pretty hard LOL

      KameronK

      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      September 07, 2017

      AMAIZING

      Extremely loud if paired with slp resonators. BUT MY MUSTANG SOUNDS SCARY .. intimidates other tuned cars lol

      Mane757

      Year: 2001 Submodel: GT

      Helpful (0)

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