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Pypes Off-Road X-Pipe (99-04 V6)

28 Reviews
Our Price


  • Item #20006
  • MPN# XFM19

  • Market Price $221.99
  • You Save 10% ($22.00)
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  • Needed for a True Dual Exhaust Conversion
  • Balance Out Exhaust Gases for More Power
  • Pypes Modular Construction
  • 2.5" 409 Stainless Steel Tubing
  • Fits 99-04 V6's with a GT Catback
Upgrade To A True Dual Exhaust. Now you can easily upgrade your V6 Pony to a true dual exhaust with a Pypes Off-Road X-Pipe. Just install this Pypes X-pipe along with the 1999-2004 GT catback of your choice, to give your Mustang the impressive looks and sound of a GT.

Balances Exhaust Gases. This Pypes off road x-pipe balances out the gas pressures in your exhaust system to create more power and torque than a traditional H-pipe. Why? Because the exiting exhaust pulses are merged at the "X", resulting in less exhaust back pressure for more power.

Modular Construction. Pypes unique three piece modular construction makes it quick and easy to add or remove a catalytic converter to your exhaust system in just minutes depending on your driving needs.

Durable Stainless Steel Construction. Pypes uses sturdy 16 gauge 409 stainless steel mandrel bent 2.5" tubing for improved flow and features welded reinforcement plates for additional strength.

Application. This Pypes Off-Road X-Pipe is designed for use on a 1999-2004 V6 Mustangs in combination with an aftermarket or factory dual 1999-2004 GT catback exhaust system. Intended for off-road track use only.

Technical note: This x-pipe is designed for off road / track use, and may not be street legal in your jurisdiction. Check local ordinances.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
Hardware included:
  • (2) 2.5" clamps
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "X" Type Headers Required: Shorty
Piping Material: 409 Stainless Steel Piping Size: 2.5"
Catalytic Converter: "No" - For off-road use only Fitment: 1999-2004 V6 Mustangs
Will it fit my Mustang?
  • V6 - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

Insane and amazing

First off I will start off saying that these are a pain in the a** to install. What i found works the best was to put the front two pipes in there correct holes on the x and loosely tighten the clamps ...

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Helpful (9)


OK i have a 01 mustang and i took the pypes to the shop to get put on and 1st off they didnt even fit they have to cut some of the pipe to make it fit and i also had to buy a O2 sensor extender to make ...

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Helpful (6)

Read All 28 Reviews
Overall Rating 4.4 out of 5 stars

Customer Photos (8) View All Photos

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10 Questions / 6 Answers

Ask a Question

will this work with my headers? I have a pair of mac long tube headers and i was wondering if this x pipe will fit

allblackstang Year: 1999 Model: V6

  • Unfortunately not, this x-pipe is meant to be used with stock manifolds or shorty headers only. With the MAC Long Tubes, you'll need to use a MAC Shorty mid-pipe for proper installation! I've attached the link below for the necessary mid-pipe so you can take a look!

    Best Answer

    LisaS Year: 1992 Model: GT

    Good Answer (1) (0)

Show 1 more answer Question Resolved

Can you add Cats to this? I want to get an Off-Road X-pipes for my mustang but it need to be able to go through inspection in 2yrs. So i was wondering if i put these on by the time i need to go through inspection i can put some cats on it until it passes and then ill take them off. Or would i have to buy the Catted X-pipes for the inspection?

Javier Year: 1999 Model: V6

  • You can but really it makes no sense to. If you have the pipe with the cats already then it's basically the same thing. If you want the cats on it I would buy the pipe that has them on it already to save yourself some time and grief of trying to get them welded to where you need them.

    boze35 Year: 2000 Model: GT

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (1) (0)

Will this work with a bone stock V6 and an American Thunder Catback Exhaust? I have a 2002 V6 that is bone stock. I was wondering if this x pipe would work with a Flowmaster American Thunder Catback Exhaust? Is there anything else I need? Thanks!

jglynn034 Year: 2002 Model: V6

  • Yes, it will bolt right to the header pipes. You also need a GT hanger kit and o2 delete resistors. When you take the old muffler hanger out, keep one of the bolts and clip. You need it for the passenger side muffler mount, the ones in the kit are not long enough. Really sounds awsome when you first start the engine

    Best Answer

    rck47 Year: 2003 Model: V6

    Good Answer (1) (0)

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Customer Reviews (28) Write a Review

Overall Rating 4.4

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.888889 4.9
  • Exhaust Note 4.777778 4.8
  • Fit & Finish 4 4
  • Bang For Your Buck 4.777778 4.8

  • 5/5

    June 30, 2010

    Insane and amazing

    First off I will start off saying that these are a pain in the a** to install. What i found works the best was to put the front two pipes in there correct holes on the x and loosely tighten the clamps around the connection. Next pull the two farthest ends from the x together until it is fairly close to fitting on the manifolds. Finish the install and should work pretty good. I put these on with the magnapacks and its insanely loud and sounds awesome. If you don't want it extremely loud get a chambered muffler. Lost a bit of low end torque but can feel a big increase in horsepower above 2500 rpm. Sounds better then a V8 and sounds like a hardcore race car at 4G RPM. Buy these!!!

    Brett VanDaalwyk

    Helpful (9) (1)

  • 4/5

    May 16, 2010

    VERY LOUD!!!

    OK i have a 01 mustang and i took the pypes to the shop to get put on and 1st off they didnt even fit they have to cut some of the pipe to make it fit and i also had to buy a O2 sensor extender to make the driver side back cat plug even fit... thats only reason im giving this 4 stars..Anyways, this is REALLY LOUD!!! and i love it if you want your car to be really loud go with thease pypes and and no cats. Just Keep in mind that on some vehicles they dont fit and u have to cut and weld them to make them fit but overall Great Buy yet again for American Muscle!


    Year: 2001

    Helpful (6) (0)

  • 5/5

    October 26, 2007

    pypes x-pipe

    I have a 1998 Mustang with 40s flowmasters and people say my stang sounds better than any v8 stang they know! I highly recommend this x-pipe!!!


    Year: 1998

    Helpful (4) (0)

  • 4/5

    August 21, 2009

    It works

    I installed this X pipe on a 2002 V6. It bolted right up to my BBK headers but the drivers side leg needed cut and welded to line up with my Flowmaster duals. But the sound and power were worth the effort.

    Dave M

    Year: 2002 Model: V6

    Helpful (2) (0)

  • 5/5

    November 18, 2009

    Awesome X Pipe

    This X pip sounds great.. you can really hear the exhaust coming through it. Reminds me so much like a Classic Muscle car.. I got this with BBK Shorty Headers and Catback Magnaflow Exhaust.. Combo is great.. =)

    Joel Zervoulakos

    Helpful (3) (1)

  • 4/5

    June 06, 2008


    The fit was good and performance gain was great. The sound really kicks in at 3K and above. I had to unhook the driver side O2 sensor from its mount for it to reach.


    Helpful (3) (1)

  • 5/5

    August 08, 2011

    V8 Sound

    Ok after seeing a youtube clip, i really wanted to do this to my pony. Have a 2000 V6. What i did is use this pipe, Mac Long Tubes, Flowmaster 40's catback. I swear it sounds FREAKIN AMAZING. Sounds closer to a GT but not the same, and that's in a good way! It is one mean sounding little pony now!


    Year: 2000 Model: V6 Driving Style: Daily Driver

    Helpful (2) (1)

  • 5/5

    September 13, 2009

    Great but its wayyyyy toooo loudd for a v6

    I brought this x pipe to go with the Gt SLP loud mouth for my 2001 V6 mustang. It sounded good after install. first of all it didnt even fit. We had to bend the pipe to fit the flanges and also need to extend the o2 wires. It is wayyy too loud for a v6 mustang. This car is louder than a COBRA. I cant even listen to music or have a conversation with my girl in the cabin thats howw loud. I think i should add the catts if i can


    Year: 2001 Model: V6

    Helpful (1) (0)

  • 5/5

    Installation Time: Full Day

    October 10, 2012

    Awesome Sound!!!

    Installed this midpipe with a Flowmaster American Thunder GT caback and could not be more pleased. Took a bit of pushing and shoving to get the whole set up together but install didnt take more than a day with 2 sets of hands. I am pretty mechanically inclined but by no means an expert and it was easy enough to intall the whole set up including tha catback. The sound is deep with a low rumble at idle and low RPMs and then around 3,000+ really can hear the offroad x and this baby starts to scream. People mistake my little v6 for a Gt all the time and I constantly turn heads driving around or when entering/leaving a carshow. You will be very happy with this product as am I... just a reminder this kit does not include hardware to connect the catback to this midpipe so you will need to buy those bolts yourself. Thanks again AM for a great product, fast shipping, and wonderful service.


    Year: 1999 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Buffalo, NY

    Helpful (1) (1)

  • 2/5

    November 20, 2009

    Should have said sumthing!!

    Never said you had to replace your flange studs! tried blowing em out with a torch because they were siezed in, melted the flange and had to replace both manifolds. should have been a fore warning on that one........ oh sounds good to

    Adam Walker

    Helpful (1) (2)

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