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BBK Catted H-Pipe (96-04 4.6L w/ Long Tube Headers)

Market Price $449.99 You Save 11% ($50.00)
Our Price

$399.99

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  • Item 56033
  • MPN# 1538

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Features, Video & Details

  • Increases Exhaust Flow for More Power
  • Classic Muscle Car Rumble
  • For Use with BBK Long Tube Headers
  • High Flow Catalytic Converters Included
  • 2.5" Mandrel-Bent Aluminized Tubing
  • Fits 96-04 GT, Bullitt, Mach 1 and Cobra

Review & Installation Video

Review & Install Video

The Catted H-Pipe is available for any 4.6-liter SN-95 owner who has or is looking to pick up a set of BBK long tubes, and wants a Catted Shorty H-Pipe for some decent power, as well as a deep muscle car growl, all while staying street legal. Now, any mid-pipe pretty much is a very much straightforward bolt-on install, and this is gonna be no different, so expect a one out of three wrenches on our difficulty meter, but I'll talk about that toward the end of the video. First thing I wanna be completely transparent about is this particular H-Pipe from BBK is specifically designed to work only with the BBK long tube headers. Now, the Shorty H-Pipe I have here will not work with factory manifolds, or even aftermarket long tubes that are not of the BBK brand. With that said, those two are made to be a perfect match, like two pieces to a puzzle, so when you do have them paired up together, you will expect a very, very, aggressive sound, as well as a decent gain in power bringing your 4.6-liter to life. The sound an H-Pipe produces is one that you would expect from your Mustang. Now, it gets the name H-Pipe obviously from the crossover pipe here that gives it the shape of an "H." Now, although slightly restrictive here because of that, it will produce the deep muscle car growl that an H-Pipe has. Now, the X-Pipe on the other hand, that BBK offers, does not have that crossover tube, but instead has both sides welded together for the "X" shape, obviously. Now, although that would make it a little more free-flowing, of course, it might add a couple of horsepower, it does also make it a lot raspier and a lot louder. Ultimately, at the end of the day, it really comes down to whether or not you're looking for the deeper tone from an H-Pipe, or the louder, raspier tone from an X-Pipe. As far as power is concerned, BBK lets us know you can expect anywhere from 14 to 22 horsepower when using the Catted H-Pipe in conjunction with your BBK long tubes. Obviously, those are very significant numbers for something that doesn't even require a tune. Now, with a tune in mind, however, it would maximize the performance of your mid-pipes since it is a more impactful mod, but it isn't required, obviously, to do the trick. Materials do have an impact on power and sound as well. Now, this one offers a 2.5 inch aluminized steel with mandrel bends, which does help to maximize the airflow of the H-Pipe. Since it is the Catted version, expect to pre-weld it on catalytic converters. Now, these are high-flow cats, so they are less restrictive than the stock options, but still restrictive, nonetheless. If you're looking to pick up a street legal ride when it comes to this H-Pipe, this is the one you want to go with, but if you're sticking to the track only and just look to maximize the amount of gains, maximize the airflow, and keep it unrestricted, the off-road version is probably the one you want to look at. Speaking of legality, unfortunately, even though this is the Catted version of the H-Pipe, it is not gonna be street legal in emissions-restrictive states, such as California, so you want to keep that in mind moving forward since it does have to be used in conjunction with the long tubes. Any state that is adapting California's laws will be the same case, so you want to make sure you're checking with your local laws and regulations before picking this one up. Now, the Catted version here does add a couple of bucks over the off-road version, so expect it to come in around the $400 mark. So if the guys trying to keep it street legal, and keep the check engine light off, this is the way you wanna go. You just wanna spend a couple extra bucks on the catted version here. Otherwise, you'll be looking at getting a tune to turn the light off, or picking up MIL eliminators to plug into the O2 sensor ports, it's a long hassle, of course, if you're going with the off-road version. So, spending a couple extra bucks, you can avoid those hassles and keep that light off. The installation, as I mentioned earlier, is extremely straightforward for a mid-pipe. Now, you're probably doing this at the same time as the BBK long tubes, which will be a very lengthy install and require a lot of know-how, but the H-Pipe itself, 1 out of 3 wrenches on our difficulty meter, 30 minutes to an hour at the most with a ratchet and socket set. The first thing you want to do, obviously, is get the Mustang in the air, supported on jack stands, or a lift if, you have access to one. Remove the O2 sensors from their ports on the factory mid-pipe to be reinstalled into the BBK option. From there, use your ratchet and socket set to connect the phalanges on one side to the factory over-axle pipes, and then the opposite side will go directly into your long tubes once they're installed. Once everything's torqued down, you can replace the O2 sensors into the new ports, and then you're good to go. Well, that's just about does it for me, so if you're the owner of a '96 to '04 4.6L SN-95 with long tube headers, you might wanna check out the BBK Catted H-Pipe, which is available right here at AmericanMuscle.com.

More Power and Torque. BBK designed this H-Pipe with high-flow catalytic converters to provide a significant increase in horsepower and torque over the restrictive stock catted pipes. Increases of 14 to 22 RWHP have been seen when installed in conjunction with BBK Long Tube Headers.

Muscle Car Rumble. This free flowing BBK Mid Pipe for the 1996 to 2004 Mustangs 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.

Rugged BBK Construction. BBK constructs their H-Pipes from free-flowing 2-1/2" diameter CNC mandrel bent aluminized tubing to ensure maximum flow and features OEM style hangers that attach in the stock locations for a perfect fit.

Application. This BBK Shorty Catted H-Pipe is made to fit the 1996-2004 GT, 2001 Bullitt, 1996-2004 SVT Cobra and 2003-2004 Mach 1 Mustangs with BBK Long-Tube Headers installed.

Technical Note: Check local ordinances to ensure that this BBK product is legal for use in your state.

Fitment: 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

What's in the Box
Hardware included:
  • (4) flange bolts, nuts, and washers
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Shorty "H" Type Headers Required: Long Tube
Piping Material: Aluminized Steel Piping Size: 2.5"
Catalytic Converter: Yes Fitment: 1996-2004 GT, Bullitt, Mach 1 and Cobra Mustangs
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • Cobra - 96, 97, 98, 99, 01, 03, 04
  • GT - 96, 97, 98, 99, 00, 01, 02, 03, 04

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
'04 V6

i put this on my '04 V6 with MAC long tube headers and it fits perfectly fine, love it.

Helpful (14)

5/5
great!

I used this H-pipe along with mac longtube headers on my 02 v6 and they fit great and really are a quality product.

Helpful (9)

Overall Rating 4.4 out of 5 stars
Read All 21 Reviews

Customer Photos (6) Submit Your Photo

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5 Questions / 5 Answers

Ask a Question

If I got the Long tube headers and a tune with these, will my car pass emission in IL ?

Adam

  • The high flow catalytic converters may cause your car to fail emissions testing. Please check with your local DMV or Emissions Center to be sure.

    VincentV

Helpful (0)

If I got this with the recommended headers and a tune, will the car pass emission test in IL?

Adam

  • Since this mid-pipe would still have the cats on it you should be able to pass emissions yes. However each state has their own rules and you would need to check with your local inspection center to make sure.

    Ricky36

Helpful (0)

Do I need a tune with a new exhaust. Im replacing the stock exhaust on my 2002 Mustang GT with BBK 1-5/8in long tube headers, BBK Catted H-Pipe, and Flowmaster Force 2 exhaust. I already have an Airaid CAI and Flash tuner with 3 custom tunes. When I install this exhaust, do I need a new tune setup?

KDP1362

  • Yes - any time you install Long Tubes with the Shorty Mid-pipe, you should update your tune files to get the maximum performance gains from the new set up. Hope this helps!

    LisaS

Helpful (0)

Will this bolt up to MAC LTs and MAC catback on 96-04? Specifically, 98?

Banshee

  • The BBK Catted H-Pipe (96-04 4.6L w/ Long Tube Headers) will not bolt up to the MAC Chrome Long Tube Headers (96-04 GT) item number 40012. We highly recommend when doing long tube headers to match the same brand mid-pipe to header for proper fitment. For the cat-back system you will be able to pair this up with any mid-pipe.

    Ricky36

Helpful (0)

Will these bolt up with v6 long tubes and GT catbacks? I want to use longtubes but i need a catted shorty H pipe for my v6 and can't find one. Will this work or do i need to get one made?

Ziko

  • Unfortunately, this mid-pipe will not bolt up to a V6 properly. This Shorty H-pipe should only be paired with BBK Long Tube Headers for V8 Mustangs.

    LisaS

Helpful (0)

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Customer Reviews (21) Write a Review

Overall Rating 4.4

out of 5 stars

Installation Time:Full Day

Installation Cost:$250-$500

  • Loudness / Volume 4 4
  • Exhaust Note 4.5 4.5
  • Fit & Finish 4.125 4.1
  • Bang For Your Buck 3.8125 3.8



  • 5/5

    October 07, 2009

    '04 V6

    i put this on my '04 V6 with MAC long tube headers and it fits perfectly fine, love it.

    Chris

    Year: 2004 Submodel: V6

    Helpful (14)

  • 5/5

    September 01, 2010

    great!

    I used this H-pipe along with mac longtube headers on my 02 v6 and they fit great and really are a quality product.

    Sean K

    Year: 2002 Submodel: V6

    Helpful (9)

  • 5/5

    March 31, 2011

    great pipe

    This is an awsome h pipe for any aplication. I put this on my 04 v6 with a set of long tubes and everything sealed up great. The sound is deep just like I expected from a good H pipe.

    jonathon

    Year: 2004 Submodel: V6

    Helpful (6)

  • 5/5

    October 03, 2009

    Great!

    Very impressed with the fitment and finish. This was used for my long tube project on my 03 V6. These fit with a slight bending outward on the catted end. Will not work without LTs though so dont buy these thinking that. The cats seem to do their jobs as well. Cannot say for sure without an emmisions test though.

    Erich

    Year: 2003 Submodel: V6

    Helpful (5)

  • 4/5

    September 23, 2007

    Quality part, classic sound

    Bought one of these to complement my BBK long tubes and replace the catless BBK X pipe that had been on there before. Bolted up quick and easy and came with enough hardware to install, I bought some more washers and such for a better fit but I love the sound that the H pipe gives me. My only real issue is that everytime I go over a speedbump it hits and knocks the pipe loose causing an exhaust leak but it happened with the old X pipe too so no big deal.

    Bryan

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    December 08, 2011

    BBK Catted Shorty H-Pipe

    Pipe was in excellent shape, weld were very clean. Cats are decent size and take away the overly loud yell that off-road pipe have. I'm in Germany and the noise is a huge concern for inspections so they work great! Keep my check engine light off without the MIL blockers. Hightly recommend these for any long tubes that bolt up!

    KBStang04

    Year: 2004 Submodel: GT Ramstein, Germany

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    August 26, 2011

    Great mid pipe!

    Ordered this pipe to replace the hollowed converters that were on the car when purchased, and I must say, I'm very pleased. I have the nice nasty deep tone back! The MAC setup I have loves this pipe!

    drkhrse

    Year: 2002 Submodel: GT ON, Canada

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 26, 2017

    BBK Catted H-Pipe for L/T Headers

    This catted h-pipe mated up perfectly on m 98 cobra with the BBK long tube headers and flow master cat-back. Fit and finish was excellent. Can be installed with hand-tools in under an hour in your garage (assuming you have done the long-tube headers already) Replacing the off-road x pipe I previously had with the same exhaust combo, total exhaust loudness is down, and the h-pipe is a bit quieter. The overall sound, however, is better in my opinion (think 60s big block) and sounds more well rounded and quality compared to the harshness of the prior off-road pipe.

    RyansGT

    Year: 1998 Submodel: Cobra

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    December 01, 2016

    Perfect growl!!!

    Ran the H-pipe off my LTH, and a Borla touring exhaust off the H. Sounds perfect for me, deep grumble at idle, then it opens right up when you get on it. Couldn't be more happy!!!! The shop install price reflects the H, Borla, and a ratchet shifter. Dropped it off in the morning, it was done after I got off work.

    JMS328

    Year: 2004 Submodel: Mach 1

    Helpful (1)

  • 1/5

    Installation Time: Less than 1 Hour

    June 30, 2016

    Defective Part

    The sound is nice! But the product itself is real bad. After a weeks of installation there was a loud rattle from one of the cats took it in to get it checked out it was bad. Called AM to get it replaced and they did replace it but the replacement is also bad after weeks of installation not to mention they would not send me a replacement until I sent the bad one back so I had to keep my car in the shop for 2 weeks!!! Do not recommend this part to anyone....

    Mach1

    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 17, 2016

    Great Turnaround...Great Product

    After tapping a speed bump and crushing the cat on my 04' Mustang I needed a replacement very quick. I ordered a BBK Catted H-Pipe from AM and had the product in my hands in 1 business day. And best of all it only took me 40 minutes to replace everything because it was a perfect fit. Thanks again AM, you have never let me down with service or quality of product.

    Dee

    Year: 2004 Submodel: GT

    Helpful (1)

  • 3/5

    Installation Time: Full Day

    June 19, 2014

    Didn't fit

    I bought this bbk catted h pipe to replace my off-road x pipe. I currently have the long tube headers also by bbk, and was told it would be a direct fit. Well after hours spent under my car with only 5 inches of ground clearance to work with, I found that the h pipe didn't line up with the headers and I had to re install my old one. Now this wouldn't have been an issue if I had been working with a hoist, but for the weekend project guys, this is a pain to have to redo with so little room. American muscle is kind enough to allow me to return it, however it was still a major inconvenience.

    alshaffer

    Year: 2003 Submodel: GT

    Helpful (1)

    • Response from AmericanMuscle

      This was designed by BBK to be a direct match to their BBK LTH's. My apologies the one you received did not fit as intended; we can surely understand the inconvenience this can cause. It's possible the h-pipe wasn't manufactured properly - we can certainly process your return for a credit or a replacement and again, apologize for the hassle you went through.

      Lisa , Customer Care

  • 5/5

    Installation Time: Less than 1 Hour

    April 28, 2013

    Very Pleased

    I bought these for an install with my long tubes because I don't personally enjoy the sound of an X pipe on the 4V engines. I was very pleased with the sound these make and the lack of any gas smell in my cabin from an off road pipe. The emissions on the car have not been greatly effected and these and the power gains were perfectly acceptable with this concession. I suggest these if you are going with BBK long tubes and are in an emissions restricted area.

    RedSnake

    Year: 1999 Submodel: Cobra Cambridge, UK

    Helpful (1)

  • 3/5

    Installation Time: Less than 1 Hour

    December 04, 2012

    Doesnt last long

    I bought my first bbk catted h-pipe 2 years ago and it worked fine for about 9 months then something broke loose in the cat and was rattling around. I thought it would have lasted a little longer but might have been a fluke one, well i bought another bbk catted h-pipe and long and behold, this one is omly 6 months old and it rattling already like theres rocks it the cat.. something isnt rite with these cats only lasting 6-9 months of regular driving. I only drive on the weekends and I dont take it to the drags, so what gives?

    Tommyboy08

    Year: 1999 Submodel: Cobra

    Helpful (1)

    • Response from AmericanMuscle

      This is definitely not something we have heard of in the past and BBK has been notified about the problem. Please give us a call so that we can figure out the best solution for you, possibly get you set up with something else that would better suit your exhaust set up!

      Lisa , Customer Care

  • 4/5

    Installation Time: Full Day

    August 16, 2017

    Fitment was off - but I managed

    My car had these on when I purchased it in 2005, and I recently replaced them when the passenger side cat failed. The sound they product is second to none, which is why I went with them again. The product came with a few dings and dents, not a big deal as its going under a car. Muffler's bolted up just fine - however this was NOT a direct bolt on to MAC 5/8 longtubes like it claims to be. I had to use a bottle jack and a paver brick (for height) to bend the pipes out wide enough to meet the headers - otherwise it was an inch off. If you do not have one of these available, I would not purchase them. FWIW, I would also have someone with a lift do this, its a royal pain to do in your driveway because of the 1 piece design, especially if your car is lowered.

    MikeA

    Year: 1997 Submodel: Cobra

    Helpful (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    June 14, 2017

    BBK Catted H-Pipe

    Having to change to a Catted H-Pipe for state emissions inspection made the sound a little quieter. The headers and mid-pipe bolted in with no extra modifications and look great.

    WilliamB

    Year: 1999 Submodel: GT

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    June 07, 2017

    Great sound!

    I got them for my mach 1 and they sound great. I got them set up with bbk long tube headers and loudmouth 1 mufflers and the sound turns heads everywhere I go.

    Mike

    Year: 2003 Submodel: Mach 1

    Helpful (0)

  • 4/5

    Installation Time: Afternoon

    May 25, 2017

    catted h-pipe

    Sounds great, gives the car an old time muscle car sound over the x-pipe. Had to wrestle with it a bit to get it in but it did fit.

    AngeloB

    Year: 2000 Submodel: GT

    Helpful (0)

  • 4/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    August 04, 2012

    Works W/ my MAC LTs

    I didn't think this pipe would work with my MAC LT headers so I was surprised when the shop said they did get it to fit. The fit is tight but that's mainly due to the automatic transmission. I would have purchased a MAC short catted H-pipe but they no longer make it. Overall a nice sounding H-pipe, of course an O/R H-pipe would sound even sweeter but I have to pass emissions where I live BOOOOOOOOO!

    AutoMachTicWeapon

    Year: 2003 Submodel: Mach 1 Georgia

    Helpful (0)

  • 5/5

    Installation Time: Shop Install

    April 20, 2012

    Goes along with the BBK Long Tube Headers

    Got this item to go along with a set of BBK long tube headers. My mechanic commented that it was of good quality and matched perfectly with the headers once he had them bolted on the car. The story here is all in the magnificent BBK Long Tube Headers. This catted H-Pipe is just a side show.

    TheBaron

    Year: 2001 Submodel: GT NJ

    Helpful (0)

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