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SLP Loudmouth Axle-Back Exhaust (05-10 GT, GT500)

Market Price $376.95 You Save 4% ($15.00)
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$361.95

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  • Item 23013
  • MPN# M31014

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    Features & Details

    • Rich, Throaty Exhaust Sound
    • 3.5" Polished 304 Stainless Steel Tips
    • Fits 2005-2010 GT and Shelby GT500 Mustangs
    Super Aggressive Exhaust Rumble. This SLP Performance Parts Axle-Back System eliminates the restrictive factory mufflers entirely from the 2005-2010 Mustangs, drastically reducing back pressure for enhanced power and aggressive sound.

    Rugged, Durable Construction. SLP's Axle-Back system is made from 2.5" mandrel-bent 409 stainless steel tubing, which has excellent flow characteristics and features pre-welded hangers for simple installation. The hand polished, 3.5" dual wall tips give a show quality muscle car appearance to the rear of your Pony.

    Application. The SLP Loudmouth Axle-Back is designed to fit the 2005-2010 GT, 2008-2009 Bullitt, and 2007-2010 Shelby GT500 Mustangs.

    Technical Note: Americanmuscle recommends adding the 2005+ Mustang 304 Stainless Steel Exhaust Hanger Kit from the drop down option above, to provide more strength, stability and a cleaner installed appearance. If you have a 2007 Mustang you may need the kit for correct installation.

    Fitment: 2005 2006 2007 2008 2009 2010 Details

    What's in the Box
    Hardware included:
    • (4) Four Clamps
    Installation Info
    Tech Specs
    Axle-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 / Resonator Fitment: 2005-2010 GT Mustangs
    Will it fit my Mustang?

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    34 Questions / 41 Answers

    Ask a Question

    If I have a dual exhaust 07 v6 will this still ?

    SamS

    Comparing these by SLP to the Pypes Bombs, which exhaust is louder?

    CoryM

    • That's definitely a tough choice. Both exhausts are definitely loud, but on a scale of 1 to 10. I would rate the Pypes at a 8/10 and the SLP a 7/10. In my opinion, the Pypes is slightly louder than the SLP.

      AMJustinH

    Helpful (0)

    Does this drone like a muffler delete, because a while ago I got a muffler delete, while it sounds good, it gives me and my occasional rear passengers a headache.

    KuwarbirS

    • The SLP Loudmouth Axle-Back Exhaust is a Muffler Delete axle Back, and will not have any mufflers included.

      AMRobD

    Helpful (0)

    Will these fit a 2006 lincon ls?, I can't find slps that are for that car but there's YouTube videos of cars that have them. Just can't find where to get em

    ShayM

    • The SLP Loudmouth axle-back exhaust is designed to fit 05-10 Mustang GT and 07-10 GT500 models. Unfortunately the exhaust will not fit a '06 Lincoln LS.

      AMJustinH

    Helpful (0)

    So to install I just remove the factory mufflers and installing the SLP Loudmouth Axle-Back Exhaust right? There is nothing else I need to do?

    AlexR

    • Yes, to install this exhaust, you will need to remove the factory mufflers to install this in its place.

      AMJalisaB

    Helpful (0)

    Will these fit on a 07 v6 that has the dual exhaust conversion on it?

    TreyLarimore

    • Fitment of the SLP Loudmouth Axle-Back Exhaust on dual exhaust conversion cars will vary based on the design of your dual exhaust conversion.

      AMRobD

    Helpful (0)

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Loudness / Volume 4.753695 4.8
    • Exhaust Note 4.783251 4.8
    • Fit & Finish 4.660099 4.7
    • Bang For Your Buck 4.62069 4.6



    • 5/5

      Installation Time: Afternoon

      July 03, 2018

      Good song

      I love kit SLP exhaust very good song loudness is it music. Hihihi

      Rene

      Year: 2006 Submodel: GT

      Helpful (0)

    • 4/5

      Installation Time: Afternoon

      June 25, 2018

      Simple Swap

      easy install, Driver side didnt quite hang right, going to rebend pipe to match passenger side

      ThadW

      Year: 2008 Submodel: GT500

      Helpful (0)

    • 2/5

      Installation Time: Shop Install

      June 25, 2018

      I can’t Believe it!!

      It honestly breaks my heart writing this.... I bought this set-up about two weeks ago after all the YouTube videos I saw, I thought they would be everything I hope they would?! After being ripped off on the install (my fault I was just so eager to get them on) I was so disappointed!!! After having straight pipes, and hating it!!! Still was decently loud... but was thinking through all and all this was it? Sadly they aren’t as loud as I dreamt they would be!! It may not be the same experience for everybody, but even at cold starts it’s so quiet! Just giving my piece of mind, hopefully someone other than myself has experienced what I have?

      JavierC

      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      June 21, 2018

      Outstanding

      Make the stang sound and feel like a classic muscle car...

      Hndover

      Year: 2008 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      June 07, 2018

      NICE AF

      It sounds really good the fitment wasn’t bad. Very good for the price. Can’t complain!

      RhashaadL

      Year: 2005 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      May 28, 2018

      The sound of freedom

      Sounds very loud and proud. If you’re an American with a v8 mustang this is the exhaust for you. If I had to explain the sound, it’s like hearing the sound of 100 bald eagles soaring across the Statue of Liberty. Paired with headers, an off road H pipe, they sound amazing.

      NicholasF

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      May 24, 2018

      Awesome!

      Fast shipping. Excellent quality. Exactly as described.

      DakotaG

      Year: 2008 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      May 19, 2018

      Great Sound for the Money

      After installing this Axle-Back it completely woke up my car! My car finally has the sound it deserves. Also, at highway speed there is little to no drone. I would recommend this exhaust to everyone as it’s great for the money you pay.

      JoelL

      Year: 2007 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      May 16, 2018

      Slp loudmouth full review

      The install wasn't bad I did it on ramps and the only part was getting the factory mufflers off. Had to pry and wiggle the old mufflers off and the whole install on ramps probably took about 2 and a half hours. The slps sound good and are definitely more than loud enough. cruising though town they are a attention getter but I they aren't unbareably loud. I drove on the highway and you do get quite a bit of drone at 2K rmps (70mph) but I just sped up to 80 and it was fine. Definitely recommend these!

      triforce656

      Year: 2006 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      May 14, 2018

      GREAT! Not as loud as i thought

      It sounds awesome at 2k rpm. Deep roar. Nothing that will make cops follow you. It sounds amazing at cold start.

      BryanJ

      Year: 2010 Submodel: GT

      Helpful (2)

    • 4/5

      Installation Time: Afternoon

      May 14, 2018

      Expensive but satisfied.

      Pros: Easy install, good looking welds, quality material, great finish on tips, deep rumble and growl, and stays tame under 2k Cons: Expensive and my passenger side pipe wont come snug on the axle pipe. I'm sure it can be fixed with a slit cut to help it bend. Things to consider: Not as loud as they say but will scream after 3.5k. Good for someone that has never done a muffler delete before but could disappoint some others.

      BlackPearl

      Year: 2009 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 14, 2018

      Exhaust

      Excellent sound easy swap from stock mufflers my pony sounds awesome the way it should waiting on a roush cold air intake tomorrow to give my car more air

      JamesH

      Year: 2007 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      May 10, 2018

      Awesome sound from this exhaust

      The parts were awesome fit perfectly sounds great we have a very large stable of Mustangs we own 4. Everything we've purchased so far from American muscle has been second to none in quality and installation

      PhilO

      Year: 2008 Submodel: Bullitt

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      May 04, 2018

      Awesome

      I love the sound. Even though all I added was the axle back it made a major difference in sound. Can't wait to change the rest out

      DavidB

      Year: 2008 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Less than 1 Hour

      April 29, 2018

      Slp Loudmouth

      Absolutely wonderful crisp sound. Very loud, turns heads all the time. When I first installed them I thought they would drone a ton in the cab but once you get into 5th and let it cruise its hardly noticeable. This is a great bang for your buck axle back with a quick and easy install made out of great material. I would buy again.

      TylerT

      Year: 2007 Submodel: GT

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      April 27, 2018

      Great sound

      I was running BBK LT headers and O/R X pipe and ending it there but you couldn't even turn the radio up loud enough to hear it so i needed something to keep that open exhaust sound but have it coming out further back. This did just that. Fitment was great and install took less than 1 hour. It did tame the sound a bit compared to running open headers but its still crazy loud at higher RPM. 10/10 would buy again.

      Ben2006eleanor

      Year: 2006 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      April 10, 2018

      Awesome

      Loud and proud. Gives the mustang the sound it deserves . Neighbors arent too happy but i am!

      GerardoZ

      Year: 2009 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Less than 1 Hour

      April 05, 2018

      Sounds great!

      They sound mean and easy to install. Little to no drone. They look great and really cant beat the price. Ordered in the afternoon and a day and half later they were on my doorstep. Awesome!!! American muscle is the best.

      Cristi

      Year: 2009 Submodel: GT

      Helpful (1)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $100-$250

      April 05, 2018

      Dual muffler delete 09 V6 - Extremely loud

      Just had these installed with the pypes muffler delete x pipe kit and pypes high flow cats, sounds beautiful. Gives a deep throaty roar but doesn't give off that high pitched 4.0 sound anymore. Couldn't be anymore happier

      BryceEdgell12

      Year: 2009 Submodel: V6

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      April 04, 2018

      Amazing Sound

      I have very limited mechanical experience and this was a super easy plug and play. The system fits right into the stock brackets. The sound is perfect, I’ve had plenty of people with the 5.0 that ask me what exhaust I have because they say they can’t get the sound that I have with this exhaust on my 4.6.

      RobertD

      Year: 2008 Submodel: GT

      Helpful (1)

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