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Pypes Catted H-Pipe (99-04 GT)

5 Reviews
Our Price

$379.99

  • Item #20132
  • MPN#CVM10K

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  • Market Price $429.99
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Features
  • Improves exhaust flow for more power
  • Classic muscle car rumble
  • Pypes modular construction
  • High-flow catalytic converters included
  • 2.5" 409 stainless steel tubing
  • Fits 1999-2004 GT Mustangs
Description
Improves Flow For More Power. Improve the horsepower and torque of your 4.6L GT Mustang by replacing those restrictive stock factory cats with a brand new Pypes H-Pipe that features high-flow catalytic converters. The Pypes high flow catted H-pipe will significantly improve your Mustang's exhaust flow for a notable increase in horsepower and torque.

Muscle Car Rumble. This free flowing Pypes h-pipe for the GT Mustang will 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.

Modular Construction. Pypes unique three piece modular construction makes it quick and easy to add or remove catalytic converters 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 exhaust flow and features welded reinforcement plates for additional strength. The included High flow catalytic converters far out perform the restrictive stock factory cats to provide a significant increase in horsepower and torque.

Application. This Pypes Catted H-pipe is designed as a direct bolt-on for the 1999 to 2004 4.6L GT Mustangs with either aftermarket short tube headers or the stock factory manifolds and a dual catback exhaust installed.Technical note: 2004 Mustangs require the use of 24" O2 sensor plug-in extender wires.

Fitment: 1999 2000 2001 2002 2003 2004 Details

Won't fit? Add an exception

What's in the Box
  • (1) Two-piece H-pipe
  • (2) Down Pipes
  • (2) Catalytic Converters
  • Clamps
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "H" Type Headers Required: Shorty or Stock Mainfolds
Piping Material: 409 Stainless Steel Piping Size: 2.5"
Catalytic Converter: Yes Fitment: 1999-2004 GT Mustangs
Will it fit my Mustang?
  • GT - 99, 00, 01, 02, 03, 04

Fits GT Only

Most Helpful Reviews

5/5
Quality product

I watched this H pipe being installed and it went right together with no problems. When on the road, the noise level is very similar to stock. However, when I get on it, the exhaust takes on an aggressive ...

Read More
Helpful (2)

5/5
Sounds great!

Hello AM, Overall, I am very pleased with this H-pipe. Installation isn't difficult, the one thing to keep in mind is that the manifold downpipes need to be cut to integrate the cats. I recommend buying ...

Read More
Helpful (1)

Read All 5 Reviews
Overall Rating 4.8 out of 5 stars

Customer Photos

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5 Questions / 5 Answers

Ask a Question

The new Catted H-pipe. With my 2003 mustang gt all ready being lowerd 2 inch in the front and 1 quater in the rear, will the new Catted H-pipe sracth the ground or hit the ground with people in the car?

Fireman809 Year: 2003 Model: GT

  • I lowered my 2004 2" in the front and 1-3/4" in the back and installed catted X pipes and cat-back exhaust. The aftermarket exhaust parts were not any lower than the factory exhaust and I have plenty of clearance. The key during installation is to jack up the connection between the H or X pipes and the cat-back before you tighten everything up to make sure the exhaust is up as tight as it should be to the chassis. I had no trouble with this.

    Best Answer

    William64 Year: 2004 Model: GT Top 250 Contributor

    Good Answer (3)

Show 1 more answer Question Resolved

h pipe vs x pipe What are the pros and cons of the h and x pipes? Which one would I get more gains from?

lilcountry Year: 2002 Model: GT

  • Based upon my experience, typically you'll see a better sound from an H and a better performance gain from an X. If your going from a stock H to this one, you'll see very low-moderate gains, especially because its catted.

    Best Answer

    Erik1 Year: 2004 Model: GT Top 500 Contributor

    Good Answer (3)

Show 1 more answer Question Resolved

Will this fit on a Mach 1? Most makers list mid pipes that fit GT/Mach 1/ Bullit. This one says GT only. Will it fit my Mach 1? The only other catted H pipe I've found is MRT, and it is $600. I'd like to use this mid pipe, and the Pypes Violator or Magnaflow catback for old-school muscle car sound.

Openb Year: 2003 Model: Mach 1

  • Yep! This will fit the Mach 1s. I have this installed on my 2004 Mach 1, along with Borla Stingers. It sounds great.

    MFiggy Year: 2004 Model: Mach 1

    Good Answer (1)

Question Resolved

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Customer Reviews (5) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 3.8 3.8
  • Exhaust Note 4.6 4.6
  • Fit & Finish 4.2 4.2
  • Bang For Your Buck 4.6 4.6



  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    April 19, 2013

    Quality product

    I watched this H pipe being installed and it went right together with no problems. When on the road, the noise level is very similar to stock. However, when I get on it, the exhaust takes on an aggressive tone and loudness level. This is just what I was looking to have. The cats supplied are throwing no codes. I highly recommend this H pipe. Thanks AM.

    freddy46rft

    Year: 2001 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 4 Lincolnton, NC 28092, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    November 13, 2014

    Sounds great!

    Hello AM, Overall, I am very pleased with this H-pipe. Installation isn't difficult, the one thing to keep in mind is that the manifold downpipes need to be cut to integrate the cats. I recommend buying more substantial band clamps to secure the cats to the downpipes, to better prevent leaks. I wouldn't mind if the pipe tucked a bit higher to the body of the car, but it doesn't hang excessively low. It sounds awesome matched up with Borla Stingers out the back! I prefer the deeper, throatier rumble of H-pipes. Everyone thinks my Mach sounds great. Regards, Matt

    MFiggy

    Year: 2004 Model: Mach 1 Driving Style: Daily Driver 'Stangs I have owned: 1 New York

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    January 16, 2015

    It is what it is.

    It's a decent mid-pipe. The cel light will trip with these, I recommend getting a tuner because the mils didn't work for me and the mid-pipe takes a bit of fabbing up to do, I took it to an exhaust shop and had them do it all. I recommend getting them welded since the cats and mid-pipe dont have a tight coupling when you're installing them. Extenders aren't necessary if you're doing the mil route.

    02RedGT

    Year: 2002 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Fort Bragg, NC, USA

    Helpful (0) (0)

  • 4/5

    Installation Time: Afternoon

    August 22, 2014

    good product for the price

    The pipe took about 3.5 hours to install at the local exhaust shop. It's definitely got a better sound than the stock pipe. And looks much better. I do feel like it hangs a bit lower than stock though

    stangman91

    Year: 2003 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 maryland

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    August 02, 2013

    great item

    i added this along with the Flowmaster American Thunder Catback, sound is amazing. deep tone with aggression! would definitely recommend getting a mid pipe when doing the cat back.

    AlexAM

    Year: 2001 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Aston, PA

    Helpful (0) (0)

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