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JBA Cat4ward Shorty Headers (99-04 GT)

8 Reviews
Our Price

$469.99

  • Item #23105
  • MPN# 1625S-9

  • Market Price $505.99
  • You Save 7% ($36.00)
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Customer Photos
Features
  • Increases horsepower and torque
  • Free flowing Mandrel-bent stainless steel
  • Natural finish
  • Features JBA Sealing Dome® collector
  • CARB EO Number: D-216-29
  • 50-State Legal
  • Fits 1999-2004 GT and Bullitt Mustangs
Description
Increase horsepower and torque. Now you can bolt on extra horsepower and torque that you can feel throughout the entire RPM band with a set of JBA Cat4ward® Shorty headers. These JBA Shorty headers improve your mustangs exhaust flow increasing your pony's horsepower, torque, and throttle response.

Quality Construction. These JBA Shorty headers are made to last using 3/8" thick laser-cut flanges, free flowing mandrel-bent 1-5/8" 409 stainless steel tubing, and JBA's Sealing Dome® collectors.

Natural Finish. These JBA Headers feature a natural stainless steel finish, which provides an aggressive appearance to your engine bay. This is not a heat-resistant coating, AmericanMuscle recommends the use of Exhaust Heat Wrap for high performance applications.

Application. Designed to fit the 1999-2004 GT Mustangs. These JBA shorty headers include high-quality mounting hardware, gaskets, and instructions, so that they will bolt right up to your Mustangs stock mid-pipe.

Mustang Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) Driver side shorty header
  • (1) Passenger side shorty header
  • (2) Header gaskets
  • (1) Exhaust gasket
  • Installation hardware
Installation Info
Tech Specs
Header Specifications
Header Type: Short Tube Finish : Natural Stainless steel
Type Mid Pipe Required: Standard Fitment: 1999-2004 GT
Will it fit my Mustang?
  • Bullitt - 01
  • GT - 99, 00, 01, 02, 03, 04

Most Helpful Reviews Read All Reviews

Overall Rating 4.6/5 Write a Review
5/5
99-04 4.6 2v JBA headers

I added these to my 2000 GT that already had p1sc supercharger, p-5 intake, catted x-pipe, and Borla side exit exhaust and these JBA headers really woke this car up. No dyno numbers yet, but the results

Read More
Helpful (7) (0)

5/5
BIG DIFFRENCE!

These headers made a huge diffrence in throttle response. They really woke up the engine. It took the shop 12 hours to install them! You can barely see them which is why I went with the plain stanless

Read More
Helpful (4) (0)

Customer Photos (3) View All Customer Photos

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Q & A (3 Questions, 6 Answers) Ask a Question

will these shortys fit my 04 gt auto? my main question is which am i better off with and which will fit better, shorty headers or long tube? help would be greatly appreciated!!!

whitegt2004 Year: 2004 Model: GT

Question Resolved
Good Question (0) (0)
  • They should fit the same but long tube are better if street legal in your state. You'll get much more power. You'll also need a short mid pipe if you buy long tube.

    Helpful (1) (0)

    Best Answer

    Tang05 Year: 2005 Model: GT

    Top 250 Contributor

Show 2 more answers

how much horsey power do u typically gain with these plz

domlee Year: 2001 Model: GT

Question Resolved
Good Question (0) (0)
  • You usuealy get about 30-40hp for long tube headers. So for the shorty pipes i want to say about 15-25.

    Helpful (1) (4)

    Iceman61485 Year: 2011 Model: GT

    Top 100 Contributor

Show 1 more answer

I have a host of other bolt on parts allready on the car. 03 gt. these headers are going on tuesday but wondering if i need to get a new tune from bama?

RickyJimmy Year: 2003 Model: GT

Question Resolved
Good Question (0) (0)
  • These shorty headers will not require a tune, but you'll see maximum performance out of them by obtaining a new tune.

    Helpful (0) (0)

    LisaS Year: 1992 Model: GT

Reviews (8) Write a Review

  • 5 Stars .62 62%
  • 4 Stars .38 38%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
4.6

out of 5 stars

7 Customers Recommend this Product

Installation Time:Full Day

  • Performance Gain: 4.5 4.5/5
  • Fit: 4.5 4.5/5
  • Bang For Your Buck: 4.833333 4.8/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    November 24, 2008

    99-04 4.6 2v JBA headers

    I added these to my 2000 GT that already had p1sc supercharger, p-5 intake, catted x-pipe, and Borla side exit exhaust and these JBA headers really woke this car up. No dyno numbers yet, but the results are definitely noticeable. Also, added a little deeper note to the exhaust. Ford installed it. Gone a year so far with no leaks. The silver ceramic coated ones I bought look nice from above too. Best of all, it\'s emissions legal with the carb number!

    steven

    Year: 2000 Model: GT

    Helpful (7) (0)

  • 5/5 Yes, I recommend this product

    May 07, 2009

    BIG DIFFRENCE!

    These headers made a huge diffrence in throttle response. They really woke up the engine. It took the shop 12 hours to install them! You can barely see them which is why I went with the plain stanless finish.

    Dean

    Helpful (4) (0)

  • 4/5 Yes, I recommend this product

    October 03, 2011

    good headers

    These headers are good. For the simple fact that they are smog legal they give good power gains threw out the power band especially on the top end they complimented my other mods very nicely as far as installation I had my heads off so it was a 10 min install ive done all the research and u can do the install in about 4hrs if u drop the suspension or 10-12 hrs if u dont. The exhaust note changed it seems to have a touch more rasp to it but sounds great. Good choice

    Chevykiller

    Year: 2003 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Redding ca

    Helpful (3) (0)

  • 5/5 Yes, I recommend this product

    March 21, 2014

    Great sounds

    I bolted these headers up while I had my cylinder heads off, so I can't necessarily comment on the conventional installation. The construction is awesome, and I am so glad I spent the extra money to go with the JBAs (I had a bad experience with the BBK shorties). Idle is slightly quieter, but as soon as you get on it they sound great with my off road x and slp lm2s. I definitely recommend ceramic coating before installing them on the car.

    Top 10 Contributor

    MineralGreyGT

    Year: 2002 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Wilmington, NC

    Helpful (2) (0)

  • 4/5 Yes, I recommend this product

    July 24, 2013

    Excellent Headers Improved Throttle Response and Power

    These pair of headers were great, they gave my 03 gt better throttle response more torque and better sound. I installed a magnapack exhaust system after I had installed these headers you wouldn't believe te sound,power and more throttle response I got. I recommend these headers as a first thing to do to your car

    Arvo

    Year: 2003 Model: GT Driving Style: Show 'Stangs I have owned: 2 Ipswich, MA, USA

    Helpful (2) (0)

  • 5/5

    November 21, 2011

    Absolutely the BEST shorty headers!

    These JBA shorty headers were really simple to install. The amount of space these headers require in the engine bay is minimal compared to various other brands. Do yourself a favor and buy these for your stang...

    Bullittwithurnameonit

    Year: 2001 Model: Bullitt Driving Style: Street / Strip 'Stangs I have owned: 3 San Diego, CA

    Helpful (2) (0)

  • 4/5 Yes, I recommend this product

    December 08, 2011

    jba shorty headers

    Sounds great. Decent power gain. Too much work for install unless u have a shop

    CowboyDrew22

    Year: 2004 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Burbank, CA

    Helpful (2) (2)

  • 5/5 Yes, I recommend this product

    December 08, 2011

    GT Joe

    I love these jba shorty headers, I can feel the differents and they are California legal LOL. Thanks AM.

    jester0618

    Year: 2000 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Oakland, CA

    Helpful (0) (2)

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