(approx) 2 Hours
Light to Moderate mechanical skill required.
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.
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Features, Description, Reviews, Q&A, Specs & Installation
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
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
(approx) 2 Hours
Light to Moderate mechanical skill required.
What's in the BoxHardware included:
|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|
September 16, 2019
Worked great with my long tube headers, didn't take long to install, still sounds great, thanks American Muscle, BBK made a great set up great quality no flaws what so everHelpful (4)
August 13, 2019
Quality deep American scream! You cant even count the amount of bald eagles and natty light that fly out the back when you hit that gas pedal.Helpful (3)
July 04, 2019
Power in the Pipes
The H pipes really give the car a nice deep growl paired with the SLP Loud Mouth and BBK long tube headers. I'd definitely recommendHelpful (5)
May 16, 2019
Easy install and gave my 03 cobra a deep tone. Great productHelpful (4)
March 14, 2019
BBK long tube headers h pipe
The shipping was fast and they look great and they bolt right on the sound greatHelpful (4)
January 29, 2019
Doesn't Line Up
I'm not sure what the issue is, but I tried bolting this to my BBK long tubes and they aren't wide enough to bolt on. When one side lines up, there is a 1/2" gap on the other side. Since it is welded, would have to be cut and re-welded to line up correctly. I sent the first mid-pipe back and the 2nd one had the same issue. Solution was to use something to pry it apart to make it wider so the flanges line up with the headers. I did that, but am now getting an exhaust leak. Will be taking it to a shop to sort it out.Helpful (6)
July 20, 2018
had to revamp
the h-pipe was a good deal, but I had to send it out to have in bent to fit. about a inch off from bolting to the headers.Helpful (10)
May 12, 2018
Exactly as described sounds good bolted right up Had a shop install with long tube headersHelpful (11)
March 16, 2018
Bbk longtube headers and hpipe
Awesome made a huge difference in sound and performanceHelpful (11)
December 12, 2017
BBK Catted H-Pipe
Very good mid pipe, was nervous about ordering this one because my last catless x pipe I had from BBK hung way too low and caused me a nightmare till I eventually accidentally tore it off from catching on something, this pipe hangs much better, gave me the nicer deeper tone I was looking for to go with my Cams and longtubes didn’t want a overbearing loud noise so this h pipe gave me exactly what I wantedHelpful (12)
Will this fit with the magnaflow competition catback on a 03 GT?
As long as you get the long tube headers from BBK also everything will fit up correctly.
Will this fit with MUSTANG GT 1-5/8 IN. LONG TUBE HEADERS
If swapping to 5.0 coyote in an sn95 cobra, with the bbk long tube headers, will this h-pipe fit? Is it even necessary if you have an aftermarket h-pipe already?
We cannot confirm fitment with Coyote Swaps.
Will this bolt up to Kooks LTs? I really don’t like the X pipe sound.
This is designed only to be used with BBK Long Tube Headers.
Will this H-pipe bolt up to my stock cat back?
The BBK Catted H-Pipe will bolt up to the stock cat back once the mid pipe is removed.
The BBK Catted H-Pipe will still hang lower than the factory mid-pipe since you have long tube headers yes. When installing the mid-pipes if you push the mid-pipe up as far as you can then hold it there to tighten the bolts this will help add some clearance.
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.
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.
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!
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.
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.