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SLP Loudmouth Center/Center Shotgun Style Resonators - 2.5 in. - Pair (Universal Fitment)

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Market Price $174.95 You Save 6% ($10.00)
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  • Item 23032

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Ship to: Ashburn - 20149
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    Features, Video & Details

    • Loud Aggressive Sound
    • Virtually No Restrictions for More Horsepower
    • Designed for SLP Modular Cat-Backs
    • 2.5" Inlet/Outlet Diameter
    • Hand-Polished 304 Stainless Steel
    • Sold as a Set of Two
    • Universal Fitment; Modifications Will Be Required

    Review & Installation Video

    Review & Install Video

    More Power and Sound.   These SLP Loudmouth "shotgun" race resonators are designed to have virtually no exhaust flow restrictions to free up more power and to produce the most aggressive sound possible.

    SLP Modular Design. SLP manufactures their Mustang catback exhaust systems with a unique modular design that allows you to easily and quickly swap out the included mufflers with any of the other SLP mufflers or resonators they make to suit your driving needs.

    High Quality Construction.   The Loudmouth "shotgun" resonators are constructed from hand-polished 304 stainless steel and are embossed with the classic SLP logo. They have a high flow design and measure in at 2.5" ID/OD, 4.5" Body Diameter, and a 18-3/16" Overall Length.

    Modifications Required. This Muffler was designed to be used on mutliple applications, as it is not a direct fit replacement part. In order to install this Muffler properly on your vehicle, some modifications to the exhaust system will be required.

    Application. These SLP Loudmouth Resonators are designed to easily replace the existing mufflers or resonators in any of SLP's 1979 to 2004 Mustang Cat-Back exhaust systems. They may also be used in the fabrication of custom exhaust systems.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 Details

    MPN# 31062

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    Hardware included:
    • None - reuses stock hardware
    Installation Info
    Tech Specs
    Measurements:
    • 2.5" ID/OD
    • 4.5" Body Diameter
    • 18-3/16" Overall Length
    Will it fit my Mustang?
    • Bullitt - 01
    • Cobra - 93, 94, 95, 96, 97, 98, 99, 00, 01, 03, 04
    • Cobra R - 93, 95, 00
    • GT - 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
    • LX - 87, 88, 89, 90, 91, 92, 93
    • Mach 1 - 03, 04
    • Other - 79, 80, 81, 82, 83, 84, 85, 86
    • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

      Customer Photos (42) Submit Your Photo

      View All 42 Photos

        Questions & Answers (79)

        5 Top Rated Questions

        Bone stock exhaust I have a bone stock exhaust. I do not have the money to buy a whole catback exhaust and have it installed. So I was wondering if getting these will make enough difference in sound on a stock catback or is it a pointless buy?

        • It would not by any means be pointless, replacement of your stock mufflers is always a plus for performance. However if you do not have the equipment, you would still need to take these to a muffler shop to have them cut away the stock mufflers and replace them with these but if you check around you should be able to get these installed for no more than $100 bucks, and it will sound just as good as buying the setup that bolts from the mid-pipe back. I have the SLP setup and I love it, FYI. I will not go back to flow master after experiencing the sound these babies put out.

        Helpful (12) Show 3 more answers

        I have a 02 Mustang GT with forged internals, trickflow stage 2 cams, 24lbs injectors, ford performance i take manifold, 78mm BBK throttle, BBK cold air intake, long tube headers, true dual with flowmaster 40s series, aluminum pullies, aluminum driveshaft... i was thinking installing a x pipe with the slp... the slp will make my mustang sound louder and agressive? And the cams are still going to sound nasty?

        • The SLP Loudmouth Center/Center Shotgun Style Resonators will make your car sound louder and the cams will still sound nasty yes!

        Helpful (2)

        I have a stock 04 Mach 1 with these simply bolt on with clamps to the stock pipes?

        • The SLP Loudmouth Center/Center Shotgun Style Resonators would not be a direct bolt on replacement for stock mufflers, as the stock mufflers will have the inlet and outlet offset on different sides of the muffler case. Modification to the existing exhaust would be required to install these mufflers.

        Helpful (2)

        Can i use these on my 08 mustang gt I had them on my 96 gt and i love the sound

        • Unfortunately I would be unable to guarantee fitment on a 2008 Mustang GT. Though these have universal fitment, they are designed to fit 1979-2004 Mustang models only.

        Helpful (1)

        Hi I have a 89 notch would the slp fit with my bbk longtube with catted x pipe ?

        • The SLP Loudmouth Center/Center Shotgun Style Resonators will fit on your 89 Mustang.

        Helpful (1)
        Post Your Question
        10 More Questions
        will these fit on a flowmaster catback system? 1 answer
        I have an 05 mustang V6 dual exhaust system. Im looking for a much louder and raspier sound. Will these possibly fit on an 05 seeing theyre made for up to 2004? If so will it sound good? 1 answer
        Can I just put these on a 2012 Challenger RT without the whole cat back system and have it sound the same 0 answer
        I have an 2000 mustang v6 one pipe .. what would I have to Do to install this ? 1 answer
        Are they 50 state legal to run SLP muffler 1 answer
        I have a 2002 gt do these slip on or do I need to weld also do I have to have a shop do it or is it pretty easy to do your self 1 answer
        I got a magna flow exhaust system on my 94 gt along with the x pipe system will these work ? 1 answer
        So are these a muffler or a resonator? I’m pretty confused should I put them where my mufflers are or where my resonators are or does it not really matter where you put them 1 answer
        I currently have a flowmaster cat back exhaust system along with a mac pro chamber h pipe no cats on my 01gt... can I have the mufflers from the flowmaster system cut off and weld these resonators on without losing any hp? Trying to upgrade without breaking my already broken bank.. lol 1 answer
        Are these smog legal replacement for a catalytic converter 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.9

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:0-$100

          • Loudness / Volume 4.772222 4.8
          • Exhaust Note 4.788889 4.8
          • Fit & Finish 4.833333 4.8
          • Bang For Your Buck 4.777778 4.8



          • 5/5

            Installation Time: Afternoon

            June 13, 2019

            Great sound

            I ordered magnaflow and used the slp in the spot of magnaflow mufflers.. best exhaust I have ever heard. Deep no pop just straight rumbles

            Jtsmooth1014

            Year: 2004 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            April 12, 2019

            Very loud!

            If you are looking for a very raspy and loud sound, this are the resonators that you have to buy! Awesome price.

            PabloR

            Year: 1998 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            April 01, 2019

            Great purchase

            Sound amazing. Couldn’t have been any easier to install. Although they don’t line up with my tailpipes, a simple 45 off them and they will line right up.

            Beas

            Year: 1998 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            March 24, 2019

            Slp

            Sound amazing any new edge owner should own these!

            Mykail

            Year: 2000 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 11, 2019

            SLP loudmouth

            Very nice product and shipping was right on time , would recommend this product to anyone

            TimothyS

            Year: 1993 Submodel: LX

            Helpful (1)

          • 5/5

            February 28, 2019

            Nice!!!!

            Wasn't as loud as I thought it'd be combined with a mac offroad prochamber h pipe but hey... I'm more then happy with the results.. American Muscle delivered as always...

            ChristopherO

            Year: 2001 Submodel: GT

            Helpful (0)

          • 1/5

            Installation Time: Afternoon

            February 27, 2019

            Slp

            I received these mufflers and they were too big and they weren’t long enough, I had to go to the auto parts store and pick up clamps and different adapters. One side of the muffler was bigger than the other side. The metal was great quality but that was the only upside

            Billyb

            Year: 2003 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            February 25, 2019

            Slp

            Really good quality great welds great construction and people will definitely hear you coming after the install

            SeanO

            Year: 1989 Submodel: LX

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            February 20, 2019

            SLP Loudmouth resonators

            Amazing! Beyond happy with how the SLP's sound on my 1996 cobra, would recommend these to anyone. And the exhuast note is perfect. Thank you

            Mike

            Year: 1996 Submodel: Cobra

            Helpful (0)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            January 18, 2019

            Dan

            Great sound...love it on my 2000 GT! Sounds just like the new ones!

            DanT

            Year: 2000 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Afternoon

            January 16, 2019

            The slps are awesome

            They sound better then all of the videos I have heard

            ByronW

            Year: 2004 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            December 30, 2018

            SLP Loudmouth Shotgun Style Resonator

            Tha SLP Loudmouth make a putty good sound on my 5.0SN95.. Now sound a lot better thank you American Muscle

            CarlosR

            Year: 1995 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Afternoon

            December 18, 2018

            Best resonators

            Extremely happy with these resonators, installed them under the fuel tank like the m80 mufflers, now my 3 valve sounds like a Sn95 or New edge mustang.

            Willymustang67

            Year: 2008 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Afternoon

            December 17, 2018

            AWESOME

            Sounds great, no problem with install if you have the tools !!

            MichaelW

            Year: 2003 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            December 12, 2018

            7-Stars on the Exhaust Note

            If youre looking for an exhaust that keeps away tail-gaters AND makes your neighbors want to put sugar in your tank, these are the pipes for it.

            MyNayborsHateMe

            Year: 1999 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            December 08, 2018

            Finally got the SLP's!!!

            All right so long story short, I'm running a off-road H-pipe, with a cat-back that is 2.5" with the SLP's in place of mufflers and 4" tips. I had Flow 44's on and it was nice. I just needed something different and more aggressive. I've been wanting the SLP's for so long, finally decided to get them. I went through Flow 40's, 44's, pype bomb m80's, straight pipe. But this is the one! It's straight through, good flow. It's a deep tone but still loud. Has a wicked crackle and growling in between shifts. Everybody has told me that this set up is way better than I had. Next is long tubes to make it even better! Just to put in perspective with these mufflers, if you have a off-road X, it's going to be a lot louder and more raspy naturally because of the X design. The H will make it more deep and rumble.

            Elementrix

            Year: 2000 Submodel: GT

            Helpful (4)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            December 08, 2018

            Still holding up

            I bought these 7 years ago and they still sound great but to get the best sound out of them you need a Mac prochamber off road mid pipe best sounding exhaust ever on a mustang. I’ve had x pipe in them and they were stupid loud and to be honest sounded like junk the h pipe were ok but the pro chamber is the perfect match

            Rody02gt

            Year: 2002 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            November 27, 2018

            Loud AF

            Got these installed on my 94 GT. LOUD. Paired them with a O/R X-Pipe. Now my Mustang sound MEAN and NASTY.

            LoydM

            Year: 1994 Submodel: GT

            Helpful (4)

          • 5/5

            November 13, 2018

            Love those mufflers

            I like them because I’m getting the sound I was looking for

            LarnellB

            Year: 1999 Submodel: GT

            Helpful (5)

          • 5/5

            November 02, 2018

            Slp

            Looks great haven’t installed but came super fast and look like they will fit

            Craig

            Year: 2003 Submodel: GT

            Helpful (2)

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