$7,000 Summertime Mustang Build Enter Now!
Talk to a Mustang Expert
Mon - Sun, 8:30 AM EST - 11:00 PM EST

Free Shipping On Orders Over $49. Details

Borla Stinger S-Type Cat-Back Exhaust (99-04 GT, Mach 1)

Market Price $703.99 You Save 11% ($75.00)
Our Price


FREE Shipping
  • Item 29003
  • MPN# 140067

In Stock Ships same business day. Choose options to add to cart

Features & Details

  • Aggressive Exhaust Note
  • Increases Horsepower
  • Bolt-On Installation
  • Durable Stainless Steel Construction
  • S-Type Mufflers Included
  • 4" Polished Tips
High Flow Exhaust. Borla engineers have designed this cat-back to deliver a significant increase in airflow over the restrictive stock exhaust system for a dramatic increase in power and sound.

Aggressive Sound. The aggressive sound of the Borla Axle-Back comes from their signature "S-Type" Stinger Mufflers. The Stinger Mufflers are manufactured from aircraft-quality T-304 stainless steel and feature a Straight-through baffled design to produce an aggressive muscle car sound.

Durable Borla Construction. The S-Type Cat-Back a.k.a "Stinger" system is made from mandrel-bent 2.5" aerospace-grade austenitic stainless steel, and features 4" brightly polished tips for a super-aggressive appearance. This system also features Borla's popular "S-Type" mufflers for an equally aggressive sound.

Application. Designed to be a direct bolt on, this Borla Stinger S-Type catback will bolt straight up to the factory Mid-Pipe without any extra modifications required on the 1999-2004 GT, 2001 Bullitt, and 2003-2004 Mach 1 Mustang to give your Pony a rich muscle car sound.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
Hardware included:
  • (1) Right muffler assembly
  • (1) Left muffler assembly
  • (1) Right tailpipe assembly
  • (1) Left tailpipe assembly
  • (2) 2-1/2" clamps
  • (2) 2-1/4" clamps
  • (2) Flared front pipe & flange adapters
Installation Info
Tech Specs
Axle-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 2.5" Tip Size: 4"
Muffler Type: Straight-through Fitment: 1999-2004 GT / Mach 1 / Bullitt Mustangs
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • GT - 99, 00, 01, 02, 03, 04

Fits GT, Mach 1, and Bullitt

People Who Bought This Item Also Bought

Most Helpful Reviews


Great sound!

Not raspy or annoying. The sound is smooth with a deep tone.

Helpful (3)

Exactly what you want from an exhaust system.

So i debated getting the S-Type cat-back for almost a year. Listened to tons of systems online and in person. Finally went with the Borla Stingers and seriously could not be more happy. They have a ...

Read More
Helpful (1)

Overall Rating 4.9 out of 5 stars
Read All 100+ Reviews

Customer Photos (61) Submit Your Photo

View All 61 Photos

You Might Also Like

21 Questions / 12 Answers

Ask a Question

Loudness? How do these compare with the slp loudmouth catback, because I want to get the loudest and the sound clips are all pretty close.


  • I wouldn't invest much in the sound clips. When i got my SLP Loudmouth and installed it on my 04 GT it sounded nothing like it, the clips likely have modified midpipes,headers, or both. In my opinion, the SLP might be a little louder but also not as smooth. I believe that the Borla provides the best sound. If you want good sound and truly want to do it right, do the headers and midpipe as well, not just the catback, this will give you best sound and performance.


Show 2 more answers Helpful (7)

will this fit my 00' mustang v6? i have a 2000 mustang v6 i was wondering would this fit it


  • As a direct bolt on, no this will not fit your 2000 V6. However, if you couple the GT catback with the V6 dual exhaust adapter kit, attached below, you will be able to install both without any problems!


Show 1 more answer Helpful (2)

will this fit on my automatic if so what other accessories do i need for the install


  • Yes will fit an auto or manual doesn't matter. And should come with everything needed to install.


Show 2 more answers Helpful (1)

Can this somehow fit my 97 gt? With some time of alterations, can this fit my 1997 Mustang gt? I love the sound and want nothing other than borla.


  • Yes. Take this awesome system to a shop who has experience with exhaust fab work and welding. A Mustang shop or a speed shop in your area will have no problems finding appropriate hanger locations to mount the system.


Show 1 more answer Helpful (1)

Is it loud from inside while driving? Or is it too loud ? Would it be too loud with an H pipe? from inside the car and out?


  • The Borla Stinger S-Type Cat-Back Exhaust is pretty aggressive & loud. With an aftermarket mid-pipe you could expect the sound to become more aggressive and louder, especially with a cat-less mid-pipe. It would be difficult to gauge how loud is too loud since sound is subjective, we apologize. We would highly recommend listening to a few sound clips from both inside and outside of the vehicle to gauge whether the sound of the exhaust is sufficient for you.


Helpful (0)

just to be sure, this system has the stinger exhaust, correct?


  • The Borla Stinger S-Type Cat-Back Exhaust will include the Stinger S Type mufflers.

    Rob D

Helpful (0)

More Products You Might Like

Customer Reviews (100+) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.798077 4.8
  • Exhaust Note 4.933333 4.9
  • Fit & Finish 4.819047 4.8
  • Bang For Your Buck 4.752381 4.8

  • 5/5

    Installation Time: Afternoon

    February 13, 2017

    Exactly what you want from an exhaust system.

    So i debated getting the S-Type cat-back for almost a year. Listened to tons of systems online and in person. Finally went with the Borla Stingers and seriously could not be more happy. They have a deep growl that blows away the system that was on my Mach 1 when i purchased it. Sounds amazing throughout the gears and is decently quiet at highway speeds. I installed it in my garage and it took about 2 and a half hours. Hardest part is getting it high enough off the ground to get the pipes over the axle then connected to the mid-pipe. Pretty straight forward, though. You cant go wrong with this system. I also have a stock H-pipe and think its plenty aggressive.


    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    December 05, 2016

    Beat S type sound

    Stay a way from Atak, this is the best catback what money can get, the differnts are : BORLA S TYPE sound DEEP. BORLA ATAK on the other hand sound like a straight pipe with no muffler , especially when you have headers that would sound really loud as if the car has no mufflers. I would say S type is the way to go for sure for that Deep mad sound , good luck with your purchase .


    Year: 1999 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    December 28, 2015

    YES! Best exhaust I've ever put on a Mustang!

    I have an 02 GT Convert, so those that are wondering, yes it is loud and does drone a bit at speed. That said, I couldn't stop grinning after I got this on and drove around the block. Turned heads and ticked off an old guy. Note: I am running this with MAC LTs and OR Pro-Chamber mid. Couple issues I had, and the reason I did not give a 5 on fit and finish: 1) The instructions say to install the flange pieces first and lightly tighten the stock hardware. The supplied flanges have holes spaced about 1/4" wider that the bolts. Solution: either grind the holes out to fit; or cut the stock flange ring off and use it (what I did). 2) The muffler piece will not slip on the flanges if installed first. I had to uninstall them, slip them on the pipe and reinstall. Suggestions: 1) If you have a fully welded Cat back on the car already, go buy a cut off wheel and save yourself a lot of headaches. 2) Buy new exhaust hangers. Mine were almost shot.


    Year: 2002 Submodel: GT Tampa, FL

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    December 10, 2015

    Insane Exhaust!

    I paired this with the Pacesetter H-pipe for the V6 and let me just say...WOW. This exhaust sounds beautiful, no drone at any speed. Doesn't even remotely sound like a V6 anymore. From a cold start, it roars and idles with a nice growl. In the 1000-1500 RPM range, it quiets down a bit, then from 2000-2500 it growls and from 2500 up at WOT it screams! The car sounds like a beast, and I'm no longer embarrassed of the rusty stock pipe and pathetic sound. I just feel bad for my neighbors when I start it up in the morning haha. I had my mechanic install it, and it took about an hour/hour and a half and cost me $125. Totally worth every cent, and I will buy Borla for all my future Mustangs


    Year: 2001 Submodel: V6 Fort Collins, CO

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    May 17, 2015

    Best catback exhaust

    It took me a hr or less to install them. very agressive exhaust ever since i install them i been getting compliments everywhere i go... its worth every penny. Thanks AM.


    Year: 2001 Submodel: GT unkown

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    January 04, 2015

    It's Alive.....

    This exhaust really brought my Mustang to life. Better horsepower and sound. I don't really care about the power, I just wanted it to sound like a Mustang should. This catback was the right choice. I was very nervous about it being too loud and raspy, but paired this with MAC pro-chamber midpipe and all you hear is Thunder! Seriously. I have zero rasp and nice drone. Loud is subjective and to me a deep growl and a nice bark when you hit the pedal is exactly what you want. It is music to me ears!! Local shop installed it and had no problems!! 4inch tips give it a smooth and very nice finish. You can't beat this exhaust in my opinion.


    Year: 2003 Submodel: GT Eugene, OR

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    June 09, 2014

    Sounds Awesome

    This exhaust sounds awesome! Turns heads and makes your car sound like a new mustang. The installation is pretty simple. Here is what I recommend. Uses jack stands to put up the back of the car. This will give you more clearance to get the new pipes over the axle. I used my ramps. It was difficult to get the new exhaust pipes over the axle, especially on the passenger side. Also, to remove the stock mufflers from the exhaust hangers, use wd-40 and a strong pair of channel locks. Dont pay 20 bucks for some specialty tool. I would totally recommend this product. It sounds great. Low, and bubbly at idle, and when you floor it, it sounds amazing. Borla is top quality. Very happy with my purchase!


    Year: 2002 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    February 20, 2014

    college commuter

    If you are like me, then you've listened to about every exhaust clip offered and your on the wall with borla because of the price. Let me tell you that i am so happy with my choice in the stingers. You wont find that deep tone anywhere else. Paired with the JBA off-road H. I drive back and forth between home and college and it is completely daily drive able.


    Year: 2004 Submodel: GT Missouri

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    February 10, 2014

    Best Money I've Spent So Far

    I did a whole lot of research before I finally pulling the trigger, going through video after video on YouTube trying to find the perfect one and I found it. Is it loud? yes, but mainly when you want it to be. If I am just cruising around you can barely hear it (no drone at all). But if I drop a gear and get on it my grin goes from ear to ear. I use my car as a daily driver and have no problems with noise besides if you are trying to be very quiet leaving for work in the morning. Took about an hour and a half to put on, very simple and straight forward especially with a lift. In summary, it was hands down the best money I've ever spent on a car modification.


    Year: 2003 Submodel: GT Western NY

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    October 11, 2013

    Sexy sound!!

    Alright got these borla stingers about a week ago had the installed the next day and holy cow it's such an amazing tone always turns heads even cops heads thankfully they smile ha. But always get compliments from both young and older crowds. Next I'm going to get the bassani mid pipe from there website because am doesn't have the automatic set which makes me sad :/ but I would definitely suggests everyone to buy these. And I did have these installed at a professional mustang shop in auburn cost me $235 for instal.


    Year: 2002 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    July 26, 2013

    Love this system!!!! Total change to the car.

    Did a ton of research before buying this system. I used to have the same car with flowmaster. Even though flowmaster is a great system, I must say I am much happier with the Borla. The exhaust note is fantastic and it seems like a real quality system. Very happy!


    Year: 2002 Submodel: GT Ottawa, ON, Canada

    Helpful (1)

  • 4/5

    Installation Time: Afternoon

    February 21, 2012

    Good Choice!!!

    I just installed this exhaust on my Mach and it sound phenomenal. It has a nice deep tone rumble to it, definitely not obnoxious sounding. They are decently quiet at cruising speeds.. no drone or anything like that. I installed these myself, the hardest part is getting the old exhaust off of the rubber hangers. Just make sure you spray some lubricant on it and they will pop off with a little effort. I would absolutely recommend this product!


    Year: 2004 Submodel: Mach 1 PA

    Helpful (4)

  • 5/5

    Installation Time: Weekend

    January 27, 2012

    Borla Stinger Cat-back

    This Borla cat-back sounds really compared to other exhaust systems I've had before this one. This is loud but not raspy where to it sounds bad. And inside the car is quiet and outside loud!! It also looks really good polished with those 4" tips!!!


    Year: 2001 Submodel: Bullitt Houston, TX

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    September 02, 2011

    Great sound!

    Not raspy or annoying. The sound is smooth with a deep tone.



    Year: 2003 Submodel: GT Aston, PA

    Helpful (3)

  • 5/5

    July 22, 2011

    What they said

    Just read the other reviews here. I can't add much. This is really what Mustangs are all about. No issues with install. Cutting the stock pipes was hardest part. What a change.

    Larry M

    Year: 2000 Submodel: GT

    Helpful (1)

  • 5/5

    January 25, 2010


    Mine just got here today and went and got them installed asap! Been driving for about four hours because I don't want to stop. Im still smiling, this was an amazing purchase and the sound is unbeatable on my 02 GT. 5 stars for AM as well for offering free shipping and good service all around oh and by the way you really can't beat this price!

    Blake C.

    Year: 2002 Submodel: GT

    Helpful (5)

  • 5/5

    May 11, 2009


    I have these on my 01 GT, and they sound mean! I get complaments everywhere i go. You wont be dissapointed!!


    Year: 2001 Submodel: GT

    Helpful (4)

  • 5/5

    August 10, 2009

    Best Catback

    Got this catback on my 04 GT and its just plain awesome. I didnt know what catback to get it was so hard to get one i looked at every other brand but in the end Borla is the way to go..this catback is stainless steel and it comes with borla's million mile warranty so you know its going to outlast every other cat back. The sound is how a V8 muscle car should sound..not obnoxiously loud or raspy like a fart can muffler and not too low its got the perfect roar to it..of course will sound better if you add an aftermarket midipe as well..If you dont know which way to go id definetly take the borla route. you wont be disappointed!

    Tony T

    Year: 2004 Submodel: GT

    Helpful (45)

  • 5/5

    February 19, 2010


    This exhaust is by far one of the best for a Mach 1. All I need now is a good X pipe.


    Helpful (4)

  • 5/5

    January 08, 2011

    Borla Stinger S-Type Catback

    I have been looking for an exhaust catback for over 3 years. over this period of time I looked at every single exhaust and studied and listened to them all. It was one of the hardest decision I have been faced with. But in the end, Borla topped them all. I listened to all the sound clips of it and i just want to say that Borla sounds sooo much better in person then through speakers. sound will get distorted through speakers. If you are struggling to pick an exhaust, go for Borla. You wont be disappointed. They look sick too!! I could honestly say I was more happy to get my Borla exhaust then the mustang GT itself. There is only one drawback thow, your neighbors will hate you, But who cares about that, there just jealous. I highly recommend the Borla Stingers S-Type Catback!!!

    Alex P

    Helpful (25)

Related Mustang Categories