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PaceSetter V6 Dual Exhaust Adapter Kit (99-04 V6)

AmericanMuscle no longer carries the PaceSetter V6 Dual Exhaust Adapter Kit (99-04 V6). Please check out 1999-2004 Mustang V6 Dual Exhaust Conversion Kits for an updated selection.
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PaceSetter V6 Dual Exhaust Adapter Kit (99-04 V6)
25 Reviews 6 Answers
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AmericanMuscle no longer carries the PaceSetter V6 Dual Exhaust Adapter Kit (99-04 V6). Please check out 1999-2004 Mustang V6 Dual Exhaust Conversion Kits for an updated selection.

Features & Details

  • Required for a True Dual Exhaust Conversion
  • Up to 18 RWHP Increase
  • Classic Muscle Car Rumble
  • H-Pipe Design
  • Reuses Catalytic Converters
  • Fits 1999-2004 V6's with a GT Cat-Back

Product Resources

Customer Photos (9) Customer Reviews (25) Questions (25) & Answers (6)
True Dual Exhaust. Convert your V6 Pony to a true dual exhaust with a PaceSetter V6 Dual Exhaust H-pipe Adapter Kit. Just install this H-pipe Adapter along with the 1999-2004 GT catback exhaust of your choice, to give your Mustang an impressive V8 sound and up to 18 more rear wheel horsepower.

Muscle Car Rumble. This free flowing PaceSetter Dual Exhaust Mid-pipe Adapter for your 3.8-powered V6 will not only increase power, but it will also add a deep muscle car rumble to the sound of your exhaust with its classic "H" crossover pipe design.

Durable Construction. The PaceSetter two piece H-pipe adapter kit features durable 2.5” diameter mandrel bent 16-gauge aluminized tubing, and reuses your factory Catalytic Converters saving you money. Kit contains adapter H-pipe, clamps, fasteners, hangers, and instructions.

Application. This PaceSetter H-pipe Dual Exhaust Adapter Kit is designed for use on the 1999 to 2004 V6 Mustangs in combination with an aftermarket or factory dual 1999-2004 GT catback exhaust system.

Technical Note. Cutting required. Welding recommended but not necessary.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Two piece H-pipe
  • (3) Clamps
  • (4) Bolts
  • (4) Nuts
  • (1) Rubber hose
  • (4) Small hose clamps
  • (1) Hanger
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: "H" Type Headers Required: Shorty
Piping Material: N/A Piping Size: 2.5"
Catalytic Converter: Reuses Stock Catalytic Converter Fitment: 1999-2004 V6 Mustangs
Will it fit my Mustang?
  • V6 - 99, 00, 01, 02, 03, 04

People Who Bought This Item Also Bought

Most Helpful Reviews

4/5
Pacetter H is great choice for any v6 !

I took a chance and bought this H pipe adapter.. To me it looked like a tough fit so i brought it to my mechanic. In addition to the H i added flow master american thunder catback to my V6 00... I was ...

Read More
Helpful (8)

5/5
Great for a V6 Stock to True Dual Conversion

I purchased this adapter kit when I purchased my Flowmaster American Thunder GT Catback exhaust. I had it professionally installed because it does require welding to the existing headers/cats. It was installed ...

Read More
Helpful (3)

Overall Rating 4.6 out of 5 stars
Read All 25 Reviews

Customer Photos (9) Submit Your Photo

View All 9 Photos

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25 Questions / 6 Answers

Ask a Question

I'm confused about which dual conversion kit to purchase if I want to use an H-Pipe. The only one that seems to be a street option for our 04 V6 is the Pypes True Dual Catted Exhaust which comes with the X-Pipe. If I want to run an H-Pipe am I buying this system and just not using the X-Pipe? Otherwise I'm not understanding which cat back system to buy.

gtcoder

  • The H-pipe keeps the exhaust from each header separate. That is, each header has its own exhaust system. The X-pipe forces the exhaust from each header to mix at the "X," and then a "balanced" exhaust flows into the two exhaust pipes downstream of the X-pipe. Each header does not have its own exhaust system since the exhaust gases are mingled in the X-pipe. Finally, your V6 already has two catalytic converters, one for each header. So you don't need a catted X-pipe. So buy the H or X pipe and a GT catback exhaust for your model year mustang and you are good to go.

    BigLight

Helpful (1)

If I buy this h pipe, do I still have to get a dual exhaust conversion kit for my v6 or can I go for a gt catback exhaust?

CristianC

  • With this H-pipe you would not need to still buy the dual exhaust conversion. Any GT cat-back would work with this H-pipe.

    Ricky36

Helpful (0)

Will these fit if paired with MAC long tube headers?

Matt

  • These will be able to fit with the MAC long tube headers however there may be some slight modification that will be needed for the connection.

    KevinD92

Helpful (0)

Will this cause me to fail any future smog tests?

DanielL

  • Hello! The PaceSetter V6 Dual Exhaust Adapter Kit is not CARB legal, and may give you issues when trying to pass smog tests.

    Doug P

Helpful (0)

I wanted to purchase this in order to install the borla S exhaust system on my 2001 V6 but I live in California, and I see that they said it not legal on California highways? If you can further explain, and if this would cause me to fail future smog tests?

DanielL

  • In California any modifications made has to be Carb Certified or approved! Its a law set in place to lower smog emissions in your state. The Pacesetter adapter that you are looking at is not approved which means it may alter the way your car produces smog, which to answer your question you can fail smog if removing the catalytic converters. This adapter on its own will not cause you to fail smog but is Illegal per Carb requirements.

    AMwhitecobraadam

Helpful (0)

Can this dual exhaust adapter be used to run 2 straight pipes all the way with no mufflers?

miked

  • As long as the piping size of the straight pipes is 2.5" this will be able to be used with two straight pipes.

    KevinD92

Helpful (0)

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Customer Reviews (25) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.695652 4.7
  • Exhaust Note 4.782609 4.8
  • Fit & Finish 4.347826 4.3
  • Bang For Your Buck 4.782609 4.8



  • 4/5

    Installation Time: Shop Install

    December 15, 2011

    Pacetter H is great choice for any v6 !

    I took a chance and bought this H pipe adapter.. To me it looked like a tough fit so i brought it to my mechanic. In addition to the H i added flow master american thunder catback to my V6 00... I was shocked with the sound difference.. Overall the H fit perfect. Great sound addition and gives a real throaty deep tone any v6 driving is looking for. Great product way wort the price... Thanks AM !

    Carlino

    Year: 2000 Submodel: V6

    Helpful (8)

  • 5/5

    Installation Time: Less than 1 Hour

    February 24, 2012

    Great for a V6 Stock to True Dual Conversion

    I purchased this adapter kit when I purchased my Flowmaster American Thunder GT Catback exhaust. I had it professionally installed because it does require welding to the existing headers/cats. It was installed with the dual exhaust and everything went on very well. I cannot really comment on the difference in sound of this part alone, since I had them installed together, but the overall sound going from Stock V6 to True Duals from the catalytic converters has drastically increased the sound level. The sound is the perfect low growl I was hoping for, and many people think I am running a V8 now instead of a V6. It is not raspy at all. My only complaint is that I get some occasional ticking/rasp at 3000RPM (only once in a while), which I believe is because the bolts in this kit have come a bit loose. All I need to do for that, though, is have it tightened up. There was no leak in the pipes or welds when I had them inspected. All in all, this was a great purchase, although I am not sure that a local shop couldn't fabricate something themselves for cheaper, so I would check that option first.

    NightSurge

    Year: 2000 Submodel: V6 Fort Wayne, IN

    Helpful (3)

  • 5/5

    Installation Time: Full Day

    October 22, 2012

    the truth on true dual

    I bought this H pipe alongside a Flowmaster American Thunder cutback and installed at the machine shop i work at with our welder, and it took the two of us about 5 hours to put in only working with ramps and a fork truck. Definitely not a do-it-yourself job; unless you have access to metal fabrication machinery, you should have it installed at a full shop. The two systems paired together make for a great sound, unless you really know what your listening for, you would think its a V8 with a nice exhaust, not just a V6. I would definitely recommend getting the real deal, this true dual exhaust instead of just a Y-pipe cat back. Not only does it sound better, but you will actually see more power out of this system than just a cutback. All-in-all there is no beating the real thing.

    GreggieD

    Year: 2001 Submodel: V6 Meriden, CT

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    February 23, 2017

    Perfect Fitment for 04 3.9L V6

    The fit and finish were perfect. The installed GT cat-back exhaust on the H-pipe looks great. Rumbles like a V8! The instructions worried my auto technician (instructions mention only 99-01 and 3.8L). I had to twice reassure my technician before he cut into the stock exhaust that the instructions would work for an 04 3.9L. A.M. please have instructions updated!

    BigLight

    Year: 2004 Submodel: V6

    Helpful (1)

  • 4/5

    July 26, 2016

    pacesetter pipe

    worked as advertised .should weld pipe to engine pipe. would recommend

    v6mustang

    Year: 2004 Submodel: V6

    Helpful (1)

  • 5/5

    July 23, 2016

    Worth it.

    I installed it with the Flowmaster American Thunder on my 2002 v6. First thing I'll say is that the installation is a pain in the dick hole. But in the end it sounds like a stock GT. For the first couple days of driving it sounds like a civic because the mufflers have not been broken in. Yeah so definitely sounds awesome like 20x louder. Tip: hang tips before you hang the muffler!!

    mustangjimmy

    Year: 2002 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 11, 2016

    pacesetter

    great product with stock cats and resonators along with flowmaster 10s sound amazing. next on the list is shortie headers and remove resonators overall great product

    Chris

    Year: 2003 Submodel: V6

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    December 10, 2015

    PACESETTER H-PIPE WITH BORLA STINGERS

    I installed this H-pipe along with Borla S-type Stingers and I must say, it sounds absolutely perfect! I've listened to a TON of videos showing an aftermarket exhaust for the V6, and one most all of them, I could hear the kind of "buzz" or "hum" that the V6 has with engine deceleration and high arms (I believe some say it sounds like a Honda), but with the Pacesetter H and the Borlas, there is none of that. It sounds amazing, throaty, and overall extremely nice. It definitely sounds like a V8, and I have no drone whatsoever. I went with a shop install, to do the Pacesetter H and the Borlas, it took about an hour and a half, and cost me $125. I had no problem with the alignment of the exhaust tips or the exhaust hanging too low. All in all, it's an awesome product and I cannot recommend it more; true dual all the way!

    Ben

    Year: 2001 Submodel: V6 Fort Collins, CO

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    July 24, 2014

    Love this thing

    This adapter is perfect in my 2000 v6. I did quite a bit of research and heard the h-pipe would give a deeper sound than the x-pipe and I fully back that statement. With almost no experience under the car I just followed the instructions to the T and it was a pretty easy install. One thing to take note: You HAVE to be very accurate where you cut your stock y-pipe (assuming you're doing it yourself and didn't bring it to a shop) or it won't sit right. Also, if you are installing the dual exhaust yourself do NOT tighten the clamps on the h-pipe adapter until you have everything where you want it or you will never be able to move it and the new exhaust won't sit straight. In all, great product and pretty easy to install if you follow the instructions given :)

    drkfrnd

    Year: 2000 Submodel: V6 Denver, CO, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 26, 2014

    Great item for sixers

    I bought this to install the borla s type gt exhaust on my 2000 v6, and it fit perfect after cutting the y pipe, you do have to make an almost perfect cut or you will have an exhaust leak and it will come with instructions on where and how to make the cut. My car doesn't sound anything near to a stock and all it is is an intake and this adapter with a borla exhaust and already sounds like monster gt. I love turning it on next to v8 owners bc it def turns heads specially when you rev it up.

    Cjr2109

    Year: 2000 Submodel: V6 Orange, VA 22960, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    March 12, 2014

    WOW

    This H-Pipe was the best investment I have made yet to my Mustang although the manifold rusted out at the ball flange connecting the down pipe to the right side cat on my car got that fixed for $25.00 other wise a easy install used pypes flow tubes to FM super 44 to turn downs no tail pipes yet maybe leave it alone anyway buy this! you will love it.

    krash

    Year: 2004 Submodel: V6 Fordland, MO 65652, USA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    March 10, 2014

    Great Fitment

    This kit has a great fitment, just follow the instructions and you'll be good, bolt it along with an SLP catback and everything bolted awesome, I didn't even have to weld anything, clamps took care of everything.

    Messi10

    Year: 2004 Submodel: V6 Philadelphia, PA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    February 22, 2014

    V6 rumble

    It is nice to have headers, an h pipe, and a Mac catback. Mecanics ask me about the setup all the time. It rumbles, purrs, and roars like I never thought it would! Thanks AM!

    Susheelover

    Year: 2001 Submodel: V6 Smyrna, GA, USA

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    December 30, 2013

    Killer H-Pipe!!!!

    I had this installed along with the Flowmaster American Thunder exhaust on my 2002 V6. My mechanic charged me $150 for the whole dual exhaust install. The H-Pipe fit absolutely perfectly. As far as bang for your buck goes, this product takes the cake. Excellent performance gain as well. I felt it as soon as I peeled out of the shop parking lot. The exhaust sounds better everyday. This is a must buy for any dual exhaust conversion. Thanks AM!

    Fitzmustang24

    Year: 2002 Submodel: V6 New Jersey

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 01, 2013

    Shocked: With MAC catback

    Had this h pipe put on my 2002 v6 along with the MAC catback system and was completely shocked the first time I heard it start up. Gives a much louder and deeper tone to my car now and Im not afraid to start my v6 in front of GT owners anymore! Also noticed an increase in power, I would estimate around 10-12 hp gain. I recommend the MAC system with it, not only is it the cheapest but also the loudest! Trust me you will not be disappointed. Thanks AM!

    Dustin11

    Year: 2002 Submodel: V6 VA

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    July 28, 2012

    Worth Every Penny

    I got this for my V6 2004 horsey and I threw on a GT Borla Dual Exhaust and the sound was amazing. It IS a tight fit, I installed it myself. Just have to make sure you cut in the right spot where the directions tell you too and put it on the right way otherwise it will hang too low if you throw it on the wrong way. You don't HAVE to weld it but its recommended due to the fact if you don't, it'll have more chance of leaks. Overall this was money well spent! Thanks American Muscle!

    Anonymous2004

    Year: 2004 Submodel: V6 Iowa

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    May 21, 2012

    Makes it easy to use GT Cat-Back

    Used it in front of the Magnaflow Dual Catback Exhaust (99-04 V6) Sounds, and works great! Made the install of the GT system a piece of cake.

    TrojanHorse

    Year: 2004 Submodel: V6 San Jose, CA, USA

    Helpful (1)

  • 3/5

    Installation Time: Full Day

    June 14, 2017

    Need to weld on, clamping may not work

    The product works well but i had three issues. First, the supplied bolts were not long enough to bolt to the catbacks (i used the stock catbacks from a 98 GT) so i had to buy longer bolts. Second, the two clamps that go towards the cut pipe were not large enough (diameter) to fit around the PaceSetter V6 Dual Exhaust Adapter, but i ended up welding the adapter on so i did not use the clamps (the small clamp that attached the two parts of the adapter together did fit good). Third, the diameter of the adapter pipes is much larger than the cut pipes on the car (my car is a 2000 V6), so there was a quarter of an inch gap after the pipes were fitted, so i am not sure how well just clamping them would work. But after everything was installed, it works good and i am happy with it.

    JohnR

    Year: 2000 Submodel: V6

    Helpful (0)

  • 4/5

    June 11, 2017

    smooth

    I have this with the SR catback exhaust and the 3.8 gives a great tone in your power band, not gonna be crazy loud but its a perfect fit and worth the money.

    Cam

    Year: 2003 Submodel: V6

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    June 08, 2017

    Love it!

    Paired this with the Pypes Pype Bomb set up, and it sounds great!

    ClayA

    Year: 2004 Submodel: V6

    Helpful (0)

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