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JBA Off-Road H-Pipe (99-04 4.6L)

35 Reviews
Our Price

$245.99

  • Item #23131
  • MPN# 1726SH

  • Market Price $274.58
  • You Save 10% ($28.59)
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Customer Photos
Features
  • Improves Exhaust Flow for More Power
  • Free Flowing Mandrel-Bent Construction
  • 2-1/2" Stainless Steel Tubing
  • Classic Muscle Car Sound
  • For Off-Road, Track Use
  • Fits 1999-2004 GT, Bullitt, Mach 1, and SVT Cobra
Description
Improves Power. Add even more horsepower and torque to your 4.6L Mustang by eliminating those power robbing factory catalytic converters with a JBA High Flow H-pipe. The JBA high flow off-road H-pipe significantly improves your Mustang's exhaust flow to increase power, torque, and improve throttle response.

Muscle Car Rumble. This free flowing JBA off-road mid-pipe not only increases power, but it also adds a deep muscle car rumble to the sound of your exhaust with its classic "H" crossover pipe design.

Quality Construction. Constructed from durable 2.5" stainless steel tubing for strength and corrosion resistance, this JBA off road H-pipe is mandrel-bent so there are no kinks to rob you of power.

Application. This JBA Off-road H-pipe is designed as a direct bolt -on for the 1999 to 2004 4.6L Mustangs, including the GT, Bullitt, Mach 1 and SVT Cobra models with aftermarket shorty headers or stock manifolds. Intended for off-road, track use only. Does not include catalytic converters.

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

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Two piece H-pipe
  • (1) Clamp
  • (1) Gasket
  • (4) Nuts
  • (4) Bolts
  • (4) Washers
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "H" Type Headers Required: Shorty or Stock Manifolds
Piping Material: Stainless 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
  • Mach 1 - 03, 04
  • Cobra - 99, 01, 03, 04
  • GT - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

5/5
Sounds Soo Good

I just received this h pipe along with my slp lm1 today. And installed in an hourish. Just let me say it sounds so good, Cant say what it sounds just by itself, but with the 2 combined it was that exhaust ...

Read More
Helpful (5)

5/5
High Quality, Sounds Great

Exhaust is well made and sounds great. The only reason it didn't get 5 stars across the board is the passenger side header gasket provided with the kit basically desintigrated after a day at the track. ...

Read More
Helpful (2)

Read All 35 Reviews
Overall Rating 4.8 out of 5 stars

Customer Photos (8) View All Photos

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5 Questions / 1 Answers

Ask a Question

Will this hook up to bbk shorty headers?

gotcubicinches

Answer This Question I need this answered (0) (0)

Will a tune be required after the installation of this H-pipe? I have an '03 Cobra with a SLP Loudmouth II cat back installed. I'm going to retain the stock headers for now but next spring I'll be adding S/C and idler pulleys, colder plugs and a larger heat exchanger. If I need a tune, I'd rather just do all of this at once instead of putting the car on the dyno twice. I've read that the car may run lean and experience idle decay. Help!?

TermiTommy

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installing slp cats on this H-pipe? Will i have to do any mods on the pipe.? like pipe expanding on the pipe??since its a 2 1/2" o/d on one end & 2 1/2" i/d on the other..

Mikekaye1969

  • You will have to expand the pipe downstream of the cats. This pipe does not hang low, read other reviews. There may not be space between cats and body using this pipe. I have this pipe on my 03 Mach1 and my wife has the SLP catted x-pipe on her 03 Mach 1.

    Alejandro03

    Good Answer (0) (0)

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Customer Reviews (35) Write a Review

Overall Rating 4.8

out of 5 stars




  • 5/5

    Installation Time: Less than 1 Hour

    June 26, 2012

    Sounds Soo Good

    I just received this h pipe along with my slp lm1 today. And installed in an hourish. Just let me say it sounds so good, Cant say what it sounds just by itself, but with the 2 combined it was that exhaust note that i was looking for. When you down shift it sounds like thunder, not all that rasp you get with a bbk or/x and flowmasters. I switched from bbk or/x to this cause i was sick of the " tin can" sound the two made together. Hope this helps. Oh and fitment was perfect, no exhaust leaks and it doesn't hang low like the bbk x-pipes do.

    John88

    Year: 2004 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2

    Helpful (5) (0)

  • 5/5

    Installation Time: Afternoon

    May 10, 2013

    High Quality, Sounds Great

    Exhaust is well made and sounds great. The only reason it didn't get 5 stars across the board is the passenger side header gasket provided with the kit basically desintigrated after a day at the track. I recommend this exhaust, but if you plan on running some track events, get a replacement gasket from Ford.

    iudelt89

    Year: 2004 Model: Mach 1 Driving Style: Race 'Stangs I have owned: 1 Chicago, IL

    Helpful (2) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    February 21, 2013

    Amazed how good it sounds!

    The install was pretty easy being a 2 piece design. It took a little adjusting to get the angle perfect, again, being 2 piece made it easier. I'm running the JBA Shorty headers, this JBA H pipe and Flowmaster American Thunder system. At start up and idle, it has the perfect balance of loudness and tone. Its a deep tone at idle. Going through the gears, it gets alot louder, and has a mean old school growl to it. If you do not want a raspy, rediculously loud exhaust, like I did, this is the one to get!

    01SnakeSVT

    Year: 2001 Model: Cobra Driving Style: Street / Strip 'Stangs I have owned: 5+ PA

    Helpful (2) (0)

  • 5/5

    July 23, 2011

    SEXY.....

    So.....taking off the stock h pipe was kind of hard....and then installing this one ..... Was cake!!! Because its a 2 piece item...it was just a breeze....I am in love with the sound this pipe gives.....very aggressive....the way a true mustang should sound!! Sounds great with borlas xr1 mufflers!! Exotic! Uncommon!! Rare!!!

    OMAR MEJIA

    Year: 2003 Model: GT Driving Style: Daily Driver

    Helpful (3) (1)

  • 5/5

    Installation Time: Afternoon

    Installation Cost: $100-$250

    January 19, 2016

    Jab off road h-pipe

    Install was a little tricky because the bolts that were supplied were not long enough(bolts for the clamps). Once we got past that it was pretty straightforward, it should be noted that my buddy is a Ford mechanic so he is quite skilled. I would say it took an honest hour and a half to two hours (also changed oil). The pipe that we took off was a BBK-X pipe with high flow cats which was rubbing on speed bumps and driveway aprons all of the time. The car definitely has a more aggressive sound, it is much louder, feels like it makes more power and does not rub on the ground at all. I would say it is about 30 louder than the X pipe with cats and the tone is just a better sound to me. I picked my buddy up on the way home from the install and took him for a ride and he was blown away at how good it sounds and stated that "this is the way a Mustang should sound". Sorry no pics.

    MikeMach

    Year: 2003 Model: Mach 1 Driving Style: Street / Strip 'Stangs I have owned: 1 Long Island, NY

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    August 31, 2015

    X Pipe resonating/rattling woes? Look no further.

    If you’re disappointed with how the BBK off road X pipe sounds on your car with the resonating/rattling sound inside and rasp/popping outside, you are looking at the right product to fix that. I ran the BBK offroad X pipe with Flowmasters for a summer, being in my mid-30s I was embarrassed to have passengers and drive around town because it sounded like a cheap, racer-boy car inside and out with all the resonating and popping. After reading that X pipes are inherently more raspy than H pipes (I read that before buying the x pipe but didn’t take it seriously), watching countless web video clips, and overcoming the thought of tackling more nasty back-on-the-floor exhaust work with bad result, I put this offroad H system on. It’s been weeks since I put this on and I’m still high as a kite that my car finally sounds like it should – deep, controlled, tasteful, and muscular. Best yet, no more tinny rattling sounds inside the car. Also, being a 2-piece system (unlike the BBK X pipe 4 piece) it’s much easier to install and align, and less places to leak. There were only 2 minor cons I ran in to. First, the included gasket is just a flat piece as seen in photos, where the OEM style has the raised lead crush ring. Maybe the included gasket would have been fine, but I wasn’t taking the chance, I sprung the 7 bucks for an OEM style from the auto parts store down the street. Second, the bolts included to mate to the catbacks were not long enough, I had to go get ¼” longer bolts to make it work (2 bucks for automotive grade bolts at a local hardware store). In the end there is no replacement for having a car sound the way you want; if you like deep, muscular sound versus the raspy, popping sound of an X pipe, this is the mid-pipe you want.

    BangedKnuckles

    Year: 1999 Model: Cobra Driving Style: Daily Driver 'Stangs I have owned: 1 Appleton, WI

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    July 15, 2015

    JBA H-Pipe

    The H-pipe give you a smooth muscle car growl, not as raspy as the X-pipe

    Tracy

    Year: 2003 Model: Cobra Driving Style: Street / Strip 'Stangs I have owned: 3 Decatur, IL

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    April 23, 2014

    JBA H-pipe and Flowmaster American Thunder

    This was very easy to install (after I got the stock midpipe off which took some time) and was a absolute perfect fit! bolted right up! and with the flowmaster American Thunder Series it sounds PERFECT! couldn't have asked for anything better!

    JoshR

    Year: 2000 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 PA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    January 30, 2014

    Drooooooool....

    I did A LOT of researcher before finally deciding on this pipe, and I can say it absolutely exceeded my expectations. The pipe is loud as others have said, but unlike an X pipe the sound is very clean with no rasp. If you want a nice deep sound from your Mustang, this pipe is the way to go. My only small complaint is the included gasket was very cheap and after the initial install I had a pretty noticeable leak between the pipe and the passenger side manifold. Luckily my original gasket was still in good shape, so I just doubled it up with the new one and leak is gone. As always, a fantastic product and fantastic service from American Muscle. BUY THIS PIPE! You will not be dissapointed.

    BigAl80021

    Year: 2003 Model: Cobra Driving Style: Show 'Stangs I have owned: 1 Westminster, CO, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    December 21, 2013

    Deep V8 rumble

    Great product! Easy installation! Direct fit no modifications needed. Local muffler shop installed in less than 50 minutes. Great sound. Deep rumble and great sound when crushing between 1500-3000! Been trying to find this sound for years and this product helped bring it to life. Used with bassani cutbacks on an 03 Mach 1.

    Rocknrollins

    Year: 2003 Model: Mach 1 Driving Style: Daily Driver 'Stangs I have owned: 2 Caddo Gap Ar

    Helpful (1) (0)

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