SLP Loudmouth Cat-Back Exhaust (99-04 Cobra)

Customer Reviews (47) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Less than 1 Hour

Installation Cost:$100-$250

• Loudness / Volume 4.805555 4.8
• Exhaust Note 4.914286 4.9
• Fit & Finish 4.722222 4.7
• Bang For Your Buck 4.666667 4.7

• 5/5

  Installation Time: Afternoon

  July 31, 2019

  Catback

  Sounds great easy to install no drone makes my mustang cobra sound like it should.

  RobertC

  Year: 1999 Submodel: Cobra

  Helpful (0) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 2/5

  Installation Time: Afternoon

  July 26, 2019

  :(

  i bought this exhuast sounds great but i had to return it cause when i got it the box was all torn up and the exhuast looked used and then when i returned it it took another week to get a new one and the second time it was missing one important piece (a pipe) didnt return it cause i had a car show coming up and didnt have time to return it.

  OG

  Year: 1999 Submodel: Cobra

  Helpful (0) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Fit & Finish 4

    4

  • Bang for your Buck 3

    3
• 5/5

  Installation Time: Less than 1 Hour

  Installation Cost: $100-$250

  April 17, 2019

  SLP LM1 vs Borla Atak

  I just put on the SLP LM1 catback to replace my Borla Atak catback. I am running Bassani headers with the Bassani o/r X pipe. (American Muscle does not sell Bassani products for the 03-04 Cobras). The Borla Atak was too raspy and nascar racecar sounding at anything about 3k rpm's. I wanted deeper, throatier, more muscle car sounding sound. I LOVE the sound of the SLP system. Exactly what I was looking for. The Ataks are actually louder believe it or not, just not the loud I wanted. By all means the SLP is still very loud, just a different type of loud. Got compliments for both just personally like this sound better. Can't go wrong with either just know what type of sound you like. Both will wake the neighbors.

  Anonymous

  Year: 2004 Submodel: Cobra

  Helpful (0) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  August 23, 2018

  the beast has awoke!

  I have this cat-back exhaust paired with an O/R Bassani X-pipe and holy smokes! installation was a breeze. bolts right up. Highly recommend this exhaust if you are looking for loud.

  KingCobra

  Year: 2001 Submodel: Cobra

  Helpful (1) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  July 12, 2018

  Recommended to everyone thinking about this.

  Easy to install and definitely gave my cobra a real cobra sound. Definitely happy with my purchase!

  JamesC

  Year: 2001 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  June 10, 2018

  2004 cobra

  The slps are really what I was looking for a great deep sound for the price I like better than most expensive brands turn heads

  QuintariusG

  Year: 2004 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  April 05, 2018

  Slp lm1

  Ordered on Wednesday on my door step by Friday fast shipping with easy installation, if you want LOUD this is the exhaust for you!

  Franky

  Year: 2004 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  March 21, 2018

  Very good exhaust would definitely buy it again

  It bolted on good no problems definitely will recommend to other people.

  MichaelF

  Year: 2003 Submodel: Cobra

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 4/5

  Installation Time: Afternoon

  March 05, 2018

  Awesome sound!

  Easy to instal with a friend and some good Tools. Great sound!!

  Bruce83

  Year: 2006 Submodel: Other

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  February 27, 2018

  SLP LM1 EXHAUST

  If you want a loud and rasp sound this is the exhaust for you I have o/r-bbk x pipe with this setup man it turns heads and people love the sound

  Richard

  Year: 2004 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  January 08, 2018

  Perfect

  Can’t go wrong with this cat-back. Easy instal and sounds amazing. Just the catback it self was aggressive. I combined the set up with a BBK off-road X-pipe and now is a beast. My 99 Cobra finally sounds the way it should.

  Figgs

  Year: 1999 Submodel: Cobra

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 4

    4
• 4/5

  Installation Time: Afternoon

  December 01, 2017

  Exhaust

  Good product. love the sound. Wish it was all ready polished for the price.

  MatthewW

  Year: 1997 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 4

    4

  • Fit & Finish 4

    4

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  November 05, 2017

  Perfect sounds

  I just installed this exhaust last night with my brother, we both didn’t think it would sounds as loud as it is. It’s perfect not to loud and deep, or quiet just the best sounding system.

  RichieJ

  Year: 2001 Submodel: Cobra

  Helpful (5) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  July 01, 2017

  Slp

  Excellent products.. Americanmuscle is the best....................

  Jhonv

  Year: 2001 Submodel: Cobra

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 3/5

  Installation Time: Less than 1 Hour

  June 26, 2017

  Not bad

  When I bought my 04 cobra it had a flowmaster cat back on it I needed something louder so I went with the slp. Although the slp is an improvement I'm still not 100 happy I plan on replacing the stock H pipe with an offroad Mac prochamber hopefully this will get the job done.

  EverettC

  Year: 2004 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 4

    4

  • Fit & Finish 4

    4

  • Bang for your Buck 4

    4
• 5/5

  Installation Time: Afternoon

  May 31, 2017

  Best mod I have done!

  I installed this system on my 2004 Cobra and I could not be happier. This is what a mustang should sound like! I did the whole thing in my driveway with the rear on ramps. I recommend following the instructions from American muscle rather than slp.com. The hardest part of the install was getting the old system out of the rubber hangers. System is tame at cruising speeds but really wakes up when you get on it. I like that I can still hear my super charger over the exhaust. All in all a great setup for the price.

  PatrickS

  Year: 2004 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 4

    4

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  May 30, 2017

  SLP LOUDMOUTH EXPERIENCE

  It sounds awesome really woke up my 03 cobra.Everything I was looking for in an exhaust .

  DanielG

  Year: 2003 Submodel: Cobra

  Helpful (4) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  May 20, 2017

  LOUD

  MINE SOUNDED GREAT, WOULD RECOMMEND TO EVERYONE, GREAT JOB

  LesJ

  Year: 2003 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Afternoon

  April 06, 2017

  Loudmouth!!!

  I ordered this exhaust and it came with in days of placing the order. Installation was quick and simple only thing is I had to log into the SLP website to get the info but besides that I love the exhaust. The tone and note sound great, not to loud at low idle but once I hit it she screams. Combined with my x pipe its a great deal the price was not to bad either. I'd buy again..

  KerryL

  Year: 2004 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 5

    5

  • Fit & Finish 5

    5

  • Bang for your Buck 5

    5
• 5/5

  Installation Time: Less than 1 Hour

  April 04, 2017

  Great exhaust

  This exhaust is super loud I have long tubes and off road h pipe,I am going to buy the loudmouth 2 mufflers to quiet it down a little,the quality of this cat back is great though and fits great!!

  JeremyD

  Year: 2003 Submodel: Cobra

  Helpful (3) Thanks for your input!

  • Loudness (Volume) 5

    5

  • Exhaust Note 4

    4

  • Fit & Finish 5

    5

  • Bang for your Buck 4

    4