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SLP Loudmouth Cat-Back Exhaust (86-93 GT)

Market Price $499.95 You Save 4% ($20.00)
Our Price

$479.95

FREE Shipping
  • Item 23029
  • MPN# M31016

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

Features & Details

  • Rich, Throaty Exhaust Tone
  • Loudmouth "Shotgun" Race Resonators Included
  • Versatile Modular Design
  • 2.5" 409 Stainless Steel Tubing
  • Polished 304 Stainless Steel Turn-Down Tips
  • Fits 1986-1993 GT 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 brightly polished 304 stainless steel turn-down tips, that exit in the stock location giving a great finishing touch and a show quality look.

Application. Designed as a direct bolt on, this SLP Loudmouth catback will bolt straight up to the factory Mid-Pipe without any modifications required on the 1986 to 1993 GT Mustangs to give it a rich, throaty sound.

NOTE: Includes Loud Mouth resonators. Loud Mouth II and PowerFlo mufflers sold separately!

Fitment: 1987 1988 1989 1990 1991 1992 1993 Details

What's in the Box
  • (2) Front Intermediate Pipes
  • (2) Mufflers
  • (2) Mid Intermediate Pipes
  • (2) Tail Pipes
  • (2) Tips
  • (2) Hangers
  • (2) Ball Flanges
  • (8) 2.5" Band Clamps
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: NA
Muffler Type: Straight-through Fitment: 1986-1993 GT Mustangs
Will it fit my Mustang?
  • Foxbody - 87, 88, 89, 90, 91, 92, 93

Fits GT Only

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
SWEEEETTTT!!!!!

sounds wicked, unique sound, better than flowmasters, if you wanna stand out in the pack get this catback, i love it.

Helpful (21)

5/5
i rate this product a 5

It\'s a really good exhaust system, it not only improved the way my Mustang sounds, it also improved air flow which gave me added horse power.

Helpful (16)

Overall Rating 4.9 out of 5 stars
Read All 14 Reviews

Customer Photos (3) Submit Your Photo

View All 3 Photos

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4 Questions / 3 Answers

Ask a Question

Will this exhaust system bolt up to the bbk off road H pipe?

JoshK

  • Yes, The SLP Loudmouth Cat-Back Exhaust will be compatible with the BBK Off road H pipe.

    AMCoal

Helpful (0)

I got this system for my 93 gt a while back and it sounds great. Recently I purchased a 93 cobra bumper and spoiler from AM. My question is, does AM offer the LX slip tips that would work with the cobra bumper. If not could AM help me locate some. Thanks in advance.

1badstang

  • Due to the non standard design of the tail pipes to accommodate a non offset muffler, we do not carry any tailpipes that would work with the SLP Loudmouth Cat-Back Exhaust. Also, at this time, we do not offer any exhaust tips that would work with the existing tail pipes.

    Rob D

Helpful (0)

I have an 86 GT that I would really like to purchase this exhaust system for. From my understanding, the 86 GT's exhaust tips are only straight tips. I was wondering if you offer the straight tip option for the 86 GTs in this system. (I know flowmaster offers the straight tips in their packet for free). If you can let me know, I would appreciate it. Thank you.

John

what comes in the box

Mata

  • Hi,This SLP Loudmouth Cat-Back Exhaust will be shipped with the following. (2) Front Intermediate Pipes (2) Mufflers A.K.A Loud Mouth resonators (2) Mid Intermediate Pipes (2) Tail Pipes (2) Tips (2) Hangers (2) Ball Flanges (8) 2.5" Band Clamps

    Chris J

Helpful (0)

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Customer Reviews (14) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.909091 4.9
  • Exhaust Note 4.818182 4.8
  • Fit & Finish 4.909091 4.9
  • Bang For Your Buck 4.636364 4.6



  • 5/5

    October 26, 2009

    SWEEEETTTT!!!!!

    sounds wicked, unique sound, better than flowmasters, if you wanna stand out in the pack get this catback, i love it.

    Derick

    Helpful (21)

  • 5/5

    November 05, 2007

    i rate this product a 5

    It\'s a really good exhaust system, it not only improved the way my Mustang sounds, it also improved air flow which gave me added horse power.

    john

    Helpful (16)

  • 5/5

    November 01, 2010

    Lovin it!

    I love the way this kit sounds! Has a very aggressive tone and will definitely make your 5.0 stand out from the Flowmaster crowd. Easy to install, took about an hour on a lift to install, including a Pypes 304 SS O/R X-pipe. Only thing I didn't like was that I could not make the exhaust tips point out from under the car, they're hidden by the bumper. Other than that I give it 5* for an excellent product at a great price!

    Sean Miller

    Helpful (10)

  • 5/5

    Installation Time: Less than 1 Hour

    December 07, 2011

    I love the sound

    Cheaper than most cat back systems and way better. easy to install. I got pulled over once and the cop asked me what I had for exhaust cause he wanted it for his mustang!

    Tdubup

    Year: 1989 Submodel: GT Stockton, CA

    Helpful (4)

  • 5/5

    Installation Time: Afternoon

    February 08, 2017

    SLP loudmouth catback exhaust is very LOUD!

    If you are looking to make your stock mustang loud this is all you need to buy! I have a 1991 mustang gt bone stock h pipe and everything else ha.. I just purchased this and they are nice pipes looks good under car comes with everything you need to install it yourself and very nice sound I was looking for. Turns heads. Will purchase more Mods from AM fast FREE shipping good deal...

    Granados

    Year: 1991 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 02, 2016

    Awesome

    Loudmouth lives up to its name, Loud. Sounds great and was easy to install. Quick shipping, thank you AM

    Jeremiah

    Year: 1990 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    October 04, 2015

    just what i was looking for.

    I am very pleased with my new exhaust. SLP did a great job putting this system together. It took about an hour to install because everything bolted right up. Made a huge difference over my factory tail pipes. Thanks american muscle for the quality parts and service you offer.

    1badstang

    Year: 1993 Submodel: GT boiling springs sc

    Helpful (1)

  • 3/5

    Installation Time: Afternoon

    May 29, 2015

    Worth the money

    My first time intalling from off-road pipe back very easy to put together and sound great.

    Mchurch

    Year: 1989 Submodel: GT Vestal, NY

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $250-$500

    December 29, 2014

    SLP Loudmouth Catback Exhaust

    Combined with a MAC H Pipe, it's exactly what I wanted. Have SLP on another Mustang and I love them both.

    DMHarris

    Year: 1993 Submodel: GT New London, NC 28127, USA

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    October 07, 2012

    Catback

    One of the tips may seem to be longer and you may need to have a shop to adjust some lignment,so that it may be evenly with the other chrome tip. Then you may want to replace your cats and headers to make it even louder.

    1Stang

    Year: 1987 Submodel: GT Clarksville, TN, USA

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    September 21, 2012

    Badass exhaust

    This is the third SLP loudmouth exhaust I have owned, they never let you down, beautiful sound, and great throttle response.

    Mrhawk

    Year: 1992 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    March 01, 2012

    Awesome

    I love this system, with the o/r h-pipe nobody wants to drive next to me on the road. It looks good and sounds great.

    Derreck

    Year: 1993 Submodel: GT Fayetteville, NC

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    July 15, 2017

    Sounds Amazing

    This is a great stainless cat-back exhaust for the money. Easy installation, and not alot of drone when crusing. Nice loud muscle car sound when you put your foot into it

    Ian

    Year: 1986 Submodel: Other

    Helpful (0)

  • 5/5

    Installation Time: Afternoon

    April 29, 2017

    Exactly what I wanted

    This exhaust setup was exactly what I was looking for sound wise. I had flowmasters before and these blow them out of the water. I recommend these to anyone looking for a deep throaty sound!

    Zackbreezy

    Year: 1988 Submodel: GT

    Helpful (0)

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