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Flowmaster Super 10 Series Offset Muffler - Stainless Steel 2.5 in. (79-04 All, Excludes 99-04 Cobra)

Market Price $85.51 You Save 12% ($9.84)

$75.67 (each)

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  • Item 18432
  • MPN# 842518

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

Features & Details

  • Super Aggressive Sound
  • One Chamber Delta Flow Technology
  • Offset Inlet and Outlet Design
  • 2.5" Inlet/Outlet Diameter
  • 409s Stainless Steel Construction
  • Intended for Off-Road Race Use
  • Sold Individually
Super Aggressive Flowmaster Sound. Improve your Mustangs exhaust flow for an increase in horsepower and a deep aggressive exhaust note with a set of Flowmaster Super 10 Series Mufflers. These mufflers are so loud they are only recommended for off-road race use.

Superior Design. The Flowmaster Super 10 Series Mufflers are MIG welded from durable 16 gauge 409s stainless steel for durability and value. The 10 series mufflers use Flowmasters one chamber delta flow design to increase power and sound. Each muffler is embossed with the "Flowmaster" name so you know it is the real article.

Application. The Super 10 Series Muffler's outer case measures 4" x 9.5" x 6.5", and features a 2.5" diameter inlet and outlet in an offset configuration. This is the perfect muffler for the 1979 to 2004 Mustangs. Excludes 1999-2004 SVT Cobra.

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

What's in the Box
  • (1) Muffler
Installation Info
Will it fit my Mustang?
  • Bullitt - 01
  • Foxbody - 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
  • Mach 1 - 03, 04
  • V6 - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04
  • Cobra - 94, 95, 96, 97, 98
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

Most Helpful Reviews

5/5
Not too loud.

This muffler has a great sound. I replaced the factory muffler on my stock single exhaust with this 10 series and some adapter pipes. Love the sound, not too loud or raspy. Very little drone!

Helpful (1)

5/5
mustang v6 owners

I have a 2010 mustang 4.0, I have been hunitng for a aggressive sound for my mustang. With price and sound being crucial, i did a lot of studying on muffler sounds on a 4.0. This flowmaster super ten was ...

Read More
Helpful (1)

Overall Rating 4.8 out of 5 stars
Read All 52 Reviews

Customer Photos (15) Submit Your Photo

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13 Questions / 19 Answers

Ask a Question

will these sound better/louder than my m-80s ?

MikeyD

  • Deeper tone, not necessarily louder. Certainly not quieter either, just different.

    Robb10

    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Are Flowmaster Super 10 series better than Borla S stingers?

Blaise

  • Flowmaster 10 Series and Borla Stingers are two uniquely different mufflers. The Flowmasters will be very aggressive and have a loud tone. The Borla Stingers will have an aggressive tone that is strictly Borla transformation. Both mufflers are two of the best sounding Mustang mufflers with unique characteristics.

    Robb10

    Good Answer (8) (0)

Show 2 more answers Question Resolved

is this a direct replacement muffler? I would like to know if this is a direct replacement muffler or will there have to be some modification in order for it to fit. I have a 2000 V6 and I am looking for something with a "deep" tone and not a "loud" one.

Bossdog

  • Some slight modifications will be needed to install these mufflers due to the difference in length over the stock mufflers. I am sure the results you are looking for will be surpassed with these great set of mufflers.

    Robb10

    Good Answer (2) (0)

Show 3 more answers Question Resolved

Will these mufflers work well with an x pipe. I have the Flowmaster super 10 series installed and just want to know if I have to give it time to break them in to get that aggressive sound. And I also have an x pipe will it better with it as well.

Kris86

  • Yes they will work well, I have them and an X-pipe on my 2011 Mustang GT 5.0 and also my 2010 GT with the 4.6 motor.

    Revvy

    Good Answer (0) (0)

Show 4 more answers Question Resolved

v8 sound i drive a v6 as an everyday driver and i really want that v8 sound will this give me the v8 sound that i desire

PapaSpoon

  • The 10 Series compliments the V6 platforms nicely. You will be satisfied..Check out youtube and give a listen.

    Robb10

    Good Answer (1) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Are these weld on or clamp on? I just removed my magnaflows because they did not sound that good and right now im just running catted mid pipe to dumps, but it was easy to remove because it had clamps on both sides, connecting to the mid pipe and connecting to the dump pieces. Will this muffler be able to do the same?

MUSTAIN

  • They can be both, weld or clamped on.

    Lonestang

    Good Answer (0) (0)

Show 2 more answers Question Resolved

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Customer Reviews (52) Write a Review

Overall Rating 4.8

out of 5 stars

Installation Time:Full Day

Installation Cost:0-$100

  • Loudness / Volume 4.530612 4.5
  • Exhaust Note 4.632653 4.6
  • Fit & Finish 4.795918 4.8
  • Bang For Your Buck 4.857143 4.9



  • 5/5

    August 17, 2016

    sounds great on my x pipe

    Thought they would be too loud with alot of interior noise, surprisingly not too loud inside. Sound great outside with a deep aggressive tone. Picked them up for a great price at AM. Would definitely recommend.

    91GTFOX

    Year: 1990 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    June 27, 2016

    Very Aggressive Sound

    Very loud and aggressive and more horsepower. I would recommend these mufflers to anyone that want a mustang that have a beast mode attitude

    03Killer

    Year: 2003 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 15, 2016

    Love them!!

    I was looking to upgrade my mufflers to something a little louder but not crazy loud. These are awesome! Sounds amazing and Flowmasters quality never disappoints!

    Aj

    Year: 1989 Submodel: Other

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    January 13, 2016

    Aggressive sound

    The best exhaust if you're looking for an aggressive muscle sound. Great sound at idle and open throttle. Interior sound is great without drowning out anything else inside.

    Vayakondios

    Year: 2001 Submodel: GT Sacramento, Ca

    Helpful (1) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    June 16, 2015

    It's OK

    Flowmaster quality but would recommend headers to get a better note. Deep sounds when at low speeds

    Trigger

    Year: 2004 Submodel: GT

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    February 18, 2015

    loud pipes saves lives

    these were my first add on hardley made any diffrence at first then i bought my bbk off road x pipe from am and good lord these things are crazy friends can hear me coming literally a mile away in the country anyway im very pleased my mustang is competition orange so now exaust is as loud as the color i highly recommend must warn ridiculously loud lots of backflow not for thr faint of heart

    burnout

    Year: 2004 Submodel: GT fairdale ky

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    October 13, 2014

    mustang v6 owners

    I have a 2010 mustang 4.0, I have been hunitng for a aggressive sound for my mustang. With price and sound being crucial, i did a lot of studying on muffler sounds on a 4.0. This flowmaster super ten was my answer. It delivers a great rumble with my dual X pipe and it growls on the roads and highway. The flow also moves much more efficient out the tail pipe and I did feel a slight difference in power with these mufflers compared to my old ones. the moment you start it up it sounds aggressive. I have seen more heads turn with these mufflers than my old ones. It is worth it for a V6.

    Lonestang

    Year: 2010 Submodel: V6 MD

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    June 27, 2014

    Not too loud.

    This muffler has a great sound. I replaced the factory muffler on my stock single exhaust with this 10 series and some adapter pipes. Love the sound, not too loud or raspy. Very little drone!

    Allamericanzero

    Year: 2004 Submodel: V6 Mi

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    January 24, 2014

    NIce sound

    I preface my statements by saying that I am new to the mustang community. I plan on converting my sixxers single exhaust into a true dual exhaust, but with that said, I was looking for a temporary change in sound from stock in the mean time. It sounded pretty good for a single exhaust when compared to stock.

    Jordan23

    Year: 2000 Submodel: V6

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    March 09, 2013

    the best

    I recommend this to anyone I love these muffler if you want some sound gets these

    IP21

    Year: 2004 Submodel: GT Petersburg, VA, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    July 14, 2012

    great sound!

    I have a MAC prochamber off-road mid pipe. It was paired with slp loudmouth 1 catback set up. WIth no cats the slp was too raspy. So I installed flowmater 10s and it is just as loud like I wanted but it is deeper and it sounds more like a mustang was meant to sound. Overall my 04 GT sounds like a beast now and I love the sound.

    Brad23

    Year: 2004 Submodel: GT Indianapolis,in

    Helpful (8) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    December 02, 2012

    Simply Amazing

    Even though I have a v6 as a new father I have to make do on what I have. So the First thing was to change out the exhaust. Got rid of the Y pipe and had a custom H pip installed. As for a stock setup I wanted the flowmaster 10s to do their magic. Flowmasters were the way to go. Nice deep rumble and screams at WOT. Driving under bridges and tunnels are heavan. This was a good purchase. Setup Stock cats, H pipe, Flowmaster 10s

    Xzavier247

    Year: 2002 Submodel: V6 TX

    Helpful (7) (1)

  • 5/5

    Installation Time: Less than 1 Hour

    March 16, 2014

    must have for your mustang (GT)

    This is awesome.......super 10s is a must have a deep loud roar that you expect from a muscle car i have them on my 2000 gt sounds like a cobra, recommend to keep the cats on or your a cop magnet but with stock exhaust set up sounds nice and aggressive will turn alot of heads promise!

    tony25

    Year: 2000 Submodel: GT El Cajon, CA, USA

    Helpful (3) (0)

  • 5/5

    Installation Time: Afternoon

    July 09, 2015

    Just do it.

    Wow. I just recently bought my mustang and it had some bullet style mufflers on it that sounded good, but i had no idea what they were so I wanted to get a good muffler that sounded good and was some what cheap. These honestly are not as loud as everyone makes them out to be, don't get me wrong the super 10s are not quite by any means, they have a fantastic american muscle sound to them and i am very pleased with my purchase. So if you are scared these will be to loud don't worry, they are the perfect mix of loudness and tone. Off road H or X coming soon and i can't wait to here it then! Thanks AM!

    Christian

    Year: 2002 Submodel: GT Louisville, KY

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    May 14, 2015

    AMAZING EXHAUST SOUND

    A very mellow aggressive deeper exhaust note unlike the 40 series I had before, got to love that almost V8 throaty rumble sound coming from my V6, the compact design give you a lot bang for your buck.

    IVStanger

    Year: 2001 Submodel: V6 EL Centro, Ca.

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    August 05, 2013

    awesome

    i had these on before american muscle carried them on their web site. they are an awesome product. the loudest of the flowmaster series. they add a deep deep rumble with the resonator rasp and crackle its the best of both worlds. i have them paired with a BBK o/r x-pipe very satisfied.

    cory1

    Year: 2000 Submodel: GT north carolina

    Helpful (2) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    February 26, 2013

    Best muffler for a Mustang GT

    I have been searching high and low for the perfect exhaust note on my 01 GT. I used to have the Flowmaster American Thunder Catback (Flowmaster Super 44's) paired with a Bassani Offroad X-Pipe. The sounds was great but it just wasn't loud enough for me. I looked at pypes and slp mufflers but I just didn't like the sound that they made. They just make loud noises. So I went with these Super 10's and they are the best sound I've ever heard on a mustang. They are very loud and have that flowmaster sound so its perfect. Trust me if you are looking for very loud mufflers. Look no further, these are the mufflers for you.

    EddyGT

    Year: 2001 Submodel: GT El Paso, TX, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    August 29, 2012

    O/R X-Pipe + Flowmaster 10's

    This is the best exhaust combination I can find for the 99-04 2v guys. The o/r x-pipe gives you the free flow you need to make the Flowmaster 10's scream. After trying many other mufflers this is the best combination between loud and throaty, NOT raspy. Bang up product, I love it! Best purchase in the exhaust department since my o/r x-pipe. Thanks

    JDawg323

    Year: 2003 Submodel: GT Oxford, OH 45056, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    August 23, 2012

    great muffler

    I have a 94 v6 5 speed mustang srs with a cold air intake n I put 2.5 pipe straight into my flow master series 10. I have just one n its loud and sounds great. Sounds just how a mustang should.... This isn't my first buy from AM. It willing be the last either.

    robmatrix

    Year: 1994 Submodel: V6 Lebanon, PA, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Afternoon

    August 15, 2012

    Great Performance And Tone

    I utilized these mufflers on my 3.8L and they sound great with that unique Flowmaster sound. I have had them on with a basic stock-like divorced dual set up and now paired with longtube headers, high-flow cats, & a MAC Prochamber that is fantastic sounding with a dyno'ed 10HP increase. These are great mufflers for all of the Mustang engine platforms, you'll love them.

    Robb10

    Year: 1997 Submodel: V6 Northern Virginia

    Helpful (1) (1)

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