WIN a 2015 Mustang Designed by Chip Foose Enter Now
1-888-332-7930 M-F 9-9,Sat 9-5:30,Sun 12-4 ET

Free Shipping on Everything. Seriously. Details

SLP Loudmouth Catback Exhaust (98 GT, Cobra)

16 Reviews
Our Price

$549.95

  • Item #23006
  • MPN# M31011

  • Market Price $604.99
  • You Save 9% ($55.04)
In Stock Ships same business day.
Free Shipping on Everything
Customer Photos
Features
  • 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 1998 GT and Cobra Mustangs
Description
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 Catback 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 brightly 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 1998 GT or SVT Cobra Mustangs to give it a rich, throaty sound.

Mustang Fitment: 1998 Details

What's in the Box
Hardware included:
  • (4) stainless steel band clamps
Installation Info
Tech Specs
Catback 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: 1998 GT and Cobra Mustangs
Will it fit my Mustang?
  • Cobra - 98
  • GT - 98

Most Helpful Reviews Read All Reviews

Overall Rating 5/5 Write a Review
5/5
Blastin. your ears off.

The most important word is LOUD. just how i like it. bolted up real nice. to x-pipe. good clearance from the ground. everything fit good and tight. nice idle. nice cruz sound. then step on it and your

Read More
Helpful (3) (0)

5/5
Blastin your ears off.

very good catback sys can really feell the power kick in at 5000 and above. fit and finish very good. it screams get out my way when you step on it. just how i like it. Nice.

Helpful (3) (0)

Customer Photos (11) View All Customer Photos

You Might Also Like

Q & A (1 Questions, 1 Answers) Ask a Question

Will these fit with long tube headers and a shorty x pipe or will I have to get a mid x pipe?

JT93 Year: 1998 Model: GT

Good Question (0) (0)
  • They will fit. The long tubes and shorty x are the same as factory manifolds and mid pipe.

    Helpful (0) (0)

    YellowSnake98 Year: 1998 Model: Cobra

Answer This Question

Reviews (16) Write a Review

  • 5 Stars 1.0 100%
  • 4 Stars 0 0%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
5.0

out of 5 stars

16 Customers Recommend this Product

Installation Time:Afternoon

  • Loudness / Volume: 5 5/5
  • Exhaust Note: 4.5 4.5/5
  • Fit & Finish: 5 5/5
  • Bang For Your Buck: 4 4/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    May 07, 2010

    Blastin. your ears off.

    The most important word is LOUD. just how i like it. bolted up real nice. to x-pipe. good clearance from the ground. everything fit good and tight. nice idle. nice cruz sound. then step on it and your breaking windows. setting off cars and maybe house alarms' lol cuz its 'LOUD' first day i took it for a test run got pulled over. in friends driveway. you mite see me on youtube lol. that was a warning. second day got pulled over got a warning ticket. lets see how many tickets i get this yr. lol

    John s.

    Helpful (3) (0)

  • 5/5 Yes, I recommend this product

    May 07, 2010

    Blastin your ears off.

    very good catback sys can really feell the power kick in at 5000 and above. fit and finish very good. it screams get out my way when you step on it. just how i like it. Nice.

    John s.

    Helpful (3) (0)

  • 5/5 Yes, I recommend this product

    July 17, 2010

    wow...

    Well, bought this with a catless x pipe. pretty sure open headers would be quiter... lol. but i get complements from everyone, just sounds so mean. give in to temptation and get it. so worth it.

    Chad

    Helpful (3) (1)

  • 5/5 Yes, I recommend this product

    May 15, 2009

    Great Catback

    Had some flowmaster 40 mufflers, then decided 2 get a whole SLP catback, and loved the sound. Many compliments, and the tips look great. Doesnt sound like every other mustang, and has a nice tone, and you could tell theres hp gain.

    Sutriz

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    November 22, 2008

    Worth every penny

    This is a great product. I am very impressed with the power gain and sound. Great if you are looking to make your Mustang more aggressive.

    micah D.

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    February 24, 2008

    BadASS

    WOW!!!! They sound so bad@$$ going down the road!!! Great HP Gains you can feel the difference I am guessing 10 - 20 hp increase. Some minor weilding needed but other than that not hard to install.

    Nick Z.

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    November 14, 2009

    Great Product

    Definitely a major upgrade from my old flows I had. The tips are beautiful!

    Jorge

    Helpful (0) (1)

  • 5/5 Yes, I recommend this product

    November 04, 2009

    Nice Upgrade

    Replaced my Flow 40's for The Slp exhaust. Wasn't disappointed at all! Great Sound! Well worth the investment.

    Jorge

    Helpful (0) (1)

  • 5/5 Yes, I recommend this product

    July 23, 2008

    Loudmouth catback 98 GT

    Awsome sound! Easy install and noticeable extra power. Too much fun! Highly recommend this kit.

    Phill

    Year: 1998 Model: GT

    Helpful (0) (1)

  • 5/5 Yes, I recommend this product

    May 14, 2015

    Great Exhaust.

    Fit perfect. Quality is top notch. Love the look. If you want loud then ive never had a louder exhaust.

    vnmsgt

    Year: 1998 Model: Cobra Driving Style: Daily Driver 'Stangs I have owned: 10+ Orlando

    Helpful (0) (0)

More Products You Might Like

Related Categories