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SLP Loudmouth Cat-Back Exhaust (94-97 GT, Cobra)

AmericanMuscle no longer carries the SLP Loudmouth Cat-Back Exhaust (94-97 GT, Cobra). Please check out 1994-1998 Mustang Cat-Back Exhaust for an updated selection.
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Features & Details

  • Rich, Throaty Exhaust Tone
  • Loudmouth "Shotgun" Race Resonators Included
  • Versatile Modular Design
  • 2.5" 409 Stainless Steel Tubing
  • 3.5" Polished 304 Stainless Steel Tips
  • Fits 1994-1997 GT and Cobra Mustangs
More Power and Sound. This SLP system includes SLP's infamous Loudmouth "shotgun" race resonators that offer virtually no exhaust flow restrictions to free up more horsepower and to produce the most aggressive sound possible.

Modular Design. SLP's unique modular design allows you to quickly and easily switch out the mufflers or resonators to suit your driving needs. Along with the included resonators, the Loud Mouth system is compatible with all SLP mufflers and resonators including the bullet-type Loud Mouth II and the traditional-style PowerFlo Muffler.

Superior SLP Construction. This SLP Cat-Back system is made from mandrel bent 2.5" 409 stainless steel tubing for its excellent non-restrictive flow characteristics and long life. The system ends with a polished 304 stainless steel 3.5" tips, that are electro-marked with the distinctive SLP logo, giving a great finishing touch and a show quality look.

Application. Designed to be a direct bolt on, this SLP Loudmouth catback will bolt straight up to the factory Mid-Pipe without any modifications required on the 1994-1997 GT or SVT Cobra Mustangs to give it a rich, throaty sound.

Fitment: 1994 1995 1996 1997 Details

CA Residents: Warning: California's Proposition 65

What's in the Box
  • (1) Driver Side Intermediate Pipe
  • (1) Passenger Side Intermediate Pipe
  • (1) Driver Side Over-Axle Pipe
  • (1) Passenger Side Over-Axle Pipe
  • (2) Loud Mouth Resonators
  • (1) Driver Side Tailpipe
  • (1) Passenger Side Tailpipe
  • (2) Tailpipe Tips
  • (2) Ball Flanges
  • (8) 2.5 in. Exhaust Clamps
  • (1) Driver Side Hanger
  • (1) Passenger Side Hanger
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: 409 Stainless Steel Tip Material : Polished 304 Stainless Steel
Piping Size: 2.5" Tip Size: 3.5"
Muffler Type: Straight-through Fitment: 1994-1997 GT and Cobra Mustangs
Will it fit my Mustang?

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Questions & Answers (19)

5 Top Rated Questions

why is it no longer available? also, this same system will fit 5.0 and 4.6?

  • Unfortunately this exhaust was discontinued and was replaced with this exhaust: https://www.americanmuscle.com/slp-loudmouth2-catback-94-97.html. Both are designed to fit all 94-97 GT and Cobra models.

Helpful (0)

Will these fit on my bbk offroad xpipe?

  • Yes, this exhaust is compatible with the BBK Off-Road X-pipe.

Helpful (0)

I have a 1998 gt, why won't it fit on my car? It says 94-97

  • This SLP Loudmouth Cat-Back Exhaust was designed for the earlier 94-97 cars. Due to several revisions to the mustang in 1998, this is incompatible with the 1998. We do offer the SLP Loudmouth Cat-Back Exhaust designed specifically for the 1998 cars, linked below: https://www.americanmuscle.com/slplokit98gt.html

Helpful (0)

Will this set up work with the bbk long tube headers and bbk shorty catted h pipe that you guys also sell?

  • The SLP Loudmouth Cat-Back Exhaust will work perfect with BBK long tube headers and catted H-Pipe, as long as the H-pipe is designed to bolt up to stock cat back, because the flanges on the cat-back are engineered for factory mid-pipes.

Helpful (0)

hey American muscle, I have a 94 cobra and I was wondering if these would fit on my bbk off-road x pipe and my bbk long tubes? thank you....

  • The SLP Loudmouth Cat-Back Exhaust will work with the setup you have yes!

Helpful (0)
Post Your Question
10 More Questions
I have a 96 mustang gt, will I need to buy any other parts when I buy this slp loudmouth cat-back exhaust. because everyone is saying it doesn't come with some parts. 1 answer
Hello I just bought a 98 mustang cobra convertible all stock will this exhaust Bolt right up? And how loud is this catback exhaust? 1 answer
So are these the loud mouth 1s 1 answer
California is very stricked when it comes to exhaust. Is this catback street legal in California? 1 answer
if i want to hook this on to a v6 with the conversion kit, will i need to replace my bumper? 1 answer
Hello American Muscle, I was wondering if these would hook up to BBK's off road X pipe without any extra modification? 1 answer
Does this cat back bolt up to the stock h-pipe on a 1994 mustang? 1 answer
Do these come with catalytic converters? 1 answer
Is this the loumouth 1 or 2 ? 1 answer
Will this exhaust system work with a 2001 Mustang that has been 5.0 swapped? 1 answer

Customer Reviews (60) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.605263 4.6
  • Exhaust Note 4.736842 4.7
  • Fit & Finish 4.631579 4.6
  • Bang For Your Buck 4.68421 4.7



  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    June 07, 2018

    Exhaust

    It’s so freaking loud!!! Sounds ridiculous with the bbk off-road x pipe.

    ZackS

    Year: 1999 Submodel: Cobra

    Helpful (5)

  • 5/5

    Installation Time: Shop Install

    June 04, 2018

    Great Exhaust!

    Finally got this system installed and what a difference from stock. Now my car sounds like a V8 mustang should! Tone is mild at idle and not annoying, but stomp on the go pedal and man does it come alive! Was apprehensive about this exhaust but well worth it. Had it installed at a shop and they said install was a breeze for a kit they haven't heard of.

    RedStang94

    Year: 1994 Submodel: GT

    Helpful (4)

  • 4/5

    Installation Time: Afternoon

    May 31, 2018

    Great tone I love that sound

    If you have a 1995 Mustang GT it will take some time remove the old exhaust if you plan to keep it. Putting the new exhaust if you are alone, need two people to install it. When you are over the axle you may need to adjust the pipes to fit.

    diamondfurniture

    Year: 1995 Submodel: GT

    Helpful (4)

  • 5/5

    Installation Time: Less than 1 Hour

    April 20, 2018

    Great sound

    Easy to install and has a terrific sound. Very satisfied!

    JamesW

    Year: 1995 Submodel: GT

    Helpful (5)

  • 5/5

    Installation Time: Less than 1 Hour

    April 18, 2018

    Loud exhaust easy install

    I installed this exhaust on my 96 Cobra. It's loud with a nice rich tone. Your neighbors are sure to hate you. Install was easy with a friend's help. I'd buy again.

    KevinY

    Year: 1996 Submodel: Cobra

    Helpful (5)

  • 5/5

    Installation Time: Afternoon

    March 26, 2018

    Amazing!!

    Sounds absolutely amazing!!!!! Not for those who are afraid of a loud car!! The great thing is that it sounds like a loud performance exhaust, not like I’m running straight pipes or something. Performance is also amazing, probably gained about 5-10hp over the regular h pipe/Flowmaster setup.

    JonathanB

    Year: 1996 Submodel: Cobra

    Helpful (5)

  • 5/5

    Installation Time: Less than 1 Hour

    January 04, 2018

    96 gt ALIVE!

    Completely changed the dynamic of the car. Went from "beast" to "SAVAGE" In under an hour of wrk. Love cold starts, and driving even more now.

    ChrisC

    Year: 1996 Submodel: GT

    Helpful (7)

  • 5/5

    Installation Time: Less than 1 Hour

    January 01, 2018

    great sound and quality

    I would recommend again to recommend good price performance ratio highly recommended

    ClaudioM

    Year: 1995 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Less than 1 Hour

    December 12, 2017

    Best sound for the 2v!

    SLP over did themselves when they made this Cat-Back Exhaust! This has made my Gt a head turner for sure!

    Kyle

    Year: 1996 Submodel: GT

    Helpful (7)

  • 5/5

    Installation Time: Afternoon

    December 11, 2017

    Slp loud mouth

    Fit and finish was very nice. Install wasn't bad with a floor Jack and stands. Took about 2 hours or so , recommend not tightening every bolt until you have it hung and aligned . Looks amazing and the sound is the best I've heard on a mustang . Have BBK short headers , BBK x pipe with the SLP exhaust and you can hear it coming from far down the road. Couldn't be happier , nice aggressive, if you wanna be heard , get this set up. Thanks AM

    JeffR

    Year: 1995 Submodel: GT

    Helpful (6)

  • 4/5

    Installation Time: Afternoon

    December 11, 2017

    Excellent, but not perfect

    The cat back exhaust is excellent, great sound, although some rasp, the sound isn't too bad. Aside from them being super loud, they're a real head Turner. The "mufflers" and the tips were excellent, wrapped in bubble wrap and everything, but as for the actual pipes themselves, they were scratched and just didn't look like I was expecting.

    GerardoO

    Year: 1997 Submodel: GT

    Helpful (6)

  • 5/5

    November 29, 2017

    Came quick

    Not sure how it will all sound and price together as it won't go in until my 331 stroker goes in.

    WarrenP

    Year: 1994 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    November 23, 2017

    SLP LM1

    Extremely happy with the purchase. No headers or mid pipe but it still gives the sound of life to my 94 GT. Like others have said, don’t forget the loc-tite

    slowman

    Year: 1994 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    September 26, 2017

    Loud

    Love the rumble man its gonna sound great with the bbk hpipe

    CjC

    Year: 1995 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Less than 1 Hour

    July 25, 2017

    pretty good, they are what they are, LOUD!

    Love them, love the pops they make and love the sound when I hit the gas. Personally I don't like the top end of 3rd and 4th with an O/R X-Pipe so I am gonna change out for an H-pipe.

    JustinR

    Year: 1996 Submodel: Cobra

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    July 08, 2017

    It's awesome

    I have a 97 GT with a off-road x pipe on it makes this thing sound awesome and it's loud

    Kenneth

    Year: 1997 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    May 23, 2017

    SLP LM1

    Love the product. It is a great upgrade for sound and look over my flowmaster cat back I had previously. The sound is great and there is no drone on the highway.

    Stangin95

    Year: 1995 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Less than 1 Hour

    May 08, 2017

    AWSOME!!!!!!!

    GREAT PRODUCT AND SERVICE, I EXPECTED A 7 WEEK DELAY DO TO MY LOUDMOUTH CAT BACK EXHAUST WAS OUT OF STOCK BUT I RECEIVED IT 4 DAYS AFTER I ORDERED IT AND IT SOUNDS AMAZING.

    TrevorS

    Year: 1994 Submodel: GT

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    March 29, 2017

    Love it

    Sounds great, even with a stock mid pipe. Looking to get a catted mid pipe next to maybe this really sound mean.

    EarvGotti

    Year: 1998 Submodel: Cobra

    Helpful (6)

  • 5/5

    Installation Time: Afternoon

    February 16, 2017

    95 5.0

    Brings a smile to my face every time I step on the gas.

    JD

    Year: 1995 Submodel: GT

    Helpful (6)

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