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

27 Reviews
Our Price

$73.44

  • Item #18432
  • MPN# 842518

  • Market Price $81.99
  • You Save 10% ($8.55)
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Product Videos Customer Photos
Features
  • 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
Description
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.

Mustang 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
Fitment
  • 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 View All

Overall Rating 4.9/5
5/5
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

Read More
Helpful (8) (1)

5/5
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

Read More
Helpful (7) (1)

Videos

Customer Photos (10) View All

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Q & A (9 Questions, 10 Answers) Ask a Question

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

MikeyD Year: 2002 Model: GT

Question Resolved
Good Question (0) (0)
  • Deeper tone, not necessarily louder. Certainly not quieter either, just different.

    Helpful (0) (0)

    Robb Year: 1997 Model: V6

    Top 25 Contributor

Show 1 more answer

With the flowmasters 10 series does it backfire when you let of the gas?

dfonseca94 Year: 1998 Model: GT

Question Resolved
Good Question (2) (0)
  • I have the Flowmaster 10 series and you will get a little bit of a popping sound as you let off the gas at high rpm's and let the engine do the braking. However, I have never had the car backfire with these mufflers. These are a perfect muffler for your Mustang!

    Helpful (0) (0)

    Luckstone Year: 2001 Model: GT

    Top 1000 Contributor

Show 1 more answer

is this the loudest flowmaster muffler?can i use this on the street?will i lose hp or gain hp?

Pepe Year: 1998 Model: GT

Question Resolved
Good Question (1) (0)
  • These are the loudest chambered muffler Flowmaster sells. As the description states on the American Muscle site, they are intended for off-road use only, but as you and many of us know these are just disclaimers they must make. You can run straight pipes, as long as you think you can get by the police! ;-) These should give you a very aggressive sound, plus the better HP gain. Just be careful who is watching you when you hammer on that Mustang! Be sure to post up a sound bite after you install them.

    Helpful (10) (0)

    Best Answer

    Patrick92 Year: 1992 Model: Other

    Top 10 Contributor

Show 5 more answers

Reviews (27) Write a Review

  • 5 Stars .89 89%
  • 4 Stars .11 11%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%
4.9

out of 5 stars

27 Customers Recommend this Product

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume: 4.666667 4.7/5
  • Exhaust Note: 4.555555 4.6/5
  • Fit & Finish: 4.814815 4.8/5
  • Bang For Your Buck: 4.888889 4.9/5
Filter By Sort By
  • 5/5 Yes, I recommend this product

    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 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 Indianapolis,in

    Helpful (8) (1)

  • 5/5 Yes, I recommend this product

    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 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 2 TX

    Helpful (7) (1)

  • 5/5 Yes, I recommend this product

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 El Cajon, CA, USA

    Helpful (3) (0)

  • 5/5 Yes, I recommend this product

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 north carolina

    Helpful (2) (1)

  • 5/5 Yes, I recommend this product

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 El Paso, TX, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    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 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Oxford, OH 45056, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    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 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Lebanon, PA, USA

    Helpful (1) (0)

  • 5/5 Yes, I recommend this product

    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.

    Top 25 Contributor

    Robb

    Year: 1997 Model: V6 Driving Style: Daily Driver 'Stangs I have owned: 1 Northern Virginia

    Helpful (1) (1)

  • 5/5 Yes, I recommend this product

    September 30, 2012

    The Loud Mouths of the Flowmaster Family.

    I originally had 40's on my Bullitt, after getting a hole in one, I decided to change it up. I purchased the Super 44's but realized they were too quiet. So after a recommendation from a friend, I tried out the Super 10's. These things are pretty darn loud. Definitely loudest of the Flowmasters I have used so far. I them installed with an Off Road H-Pipe. Sound is decently loud with a well defined ton. The sweet spot for my other Flowmasters used to be 2000-2400rpm. Now it is 2200-2500. Very satisfied and as always, excellent shipping from American Muscle.

    Deschain

    Year: 2001 Model: Bullitt Driving Style: Daily Driver 'Stangs I have owned: 1 Salisbury, MD, USA

    Helpful (1) (2)

  • 4/5 Yes, I recommend this product

    September 22, 2012

    Super 10

    Mufflers were crazy LOUD, not really a fan of all the cracking noise, but i learned to love it!

    stngkid007

    Year: 2004 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 3 colorado

    Helpful (1) (2)

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