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Pypes M-80 Center/Center Bullet Style Muffler - 2.5 in. (79-04 All)

Market Price $66.99 You Save 13% ($9.02)
Our Price

$57.97 (each)

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  • Item 20108
  • MPN# MVR200S

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Features & Details

  • Aggressive Throaty M80 Tone
  • Straight-Through Design for Superior Flow
  • 4" Round Inline Design
  • 2.5" Inlet/Outlet Diameter
  • 304 Polished Stainless Steel Construction
  • Sold Individually
Aggressive M80 Sound. The M80 "Race Pro" muffler has a straight-through design that features a layer of stainless mesh around a unique internal 3.5" louvered tube, accompanied by a healthy stuffing of basalt insulation that results in an aggressive muscle car tone and an improved exhaust flow for more power.

Polished Stainless Steel Construction. Constructed from polished 304 Stainless Steel to resists rust and corrosion, the Pypes M80 Muffler features a round 4" diameter tubular bullet style casing that is welded closed to ensure a long life without any annoying rattles.

Application. The Pypes M80 Muffler's outer case measures 14" long and 4" round, it features a 2.5" diameter inlet and outlet in a straight inline configuration. Making this is the perfect muffler for the 1979 to 2004 Mustangs.

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
Tech Specs
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, 99, 01, 03, 04
  • GT - 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04

People Who Bought This Item Also Bought

Most Helpful Reviews

Do not buy!!

I bought these and boy do i regret it. There extremly loud and im not talkin about a good loud either. Really raspy almost sound like a truck with straight pipe. If you go past 2500 rpms you might as well ...

Read More
Helpful (20)

07 GT w/ m80's!

Had these mufflers installed on my 07 GT, i have a pypes o/r x pipe and had the m80s welded in the middle following a custom axle back muffler delete all the way out, (straight pipes) and dammmn! these ...

Read More
Helpful (18)

Overall Rating 4.7 out of 5 stars
Read All 100+ Reviews

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35 Questions / 6 Answers

Ask a Question

Will this fit a stock single exhaust V6 Mustang? Or will I have to swap to a Dual Exhaust (which I don't have the money for) Just trying to make it sound louder and meaner.


  • You do not need to do a dual exhaust swap to install this and have this work.


Helpful (1)

All of the pictures I've seen have shown this muffler connected to a dual exhaust. I was wondering if it would still sound the same if it were put on an all stock 04 mustang V6?


  • Hi, This Pypes M-80 Bullet Style Muffler wont sound exactly the same on a V6 as a V8 but it will sound pretty similar.

    Chris J

Helpful (1)

which way do they go? wha direction does the air flow?


  • The Pypes M-80 Center/Center Bullet Style Mufflers are not directional. They do not have a front or back.


Helpful (0)

Will this fit a 1996 v6 mustang without having to to buy anything else for it to fit other than clamps?


  • Due to the Pypes M-80 Center/Center Bullet Style Muffler's inlet/outlet locations, you would need to utilize some creativity to line up with the piping meant for the OEM setup with an offset/offset muffler design.

    Rob D

Helpful (0)

Does anyone know if this is legal to have in IL?


  • Unfortunately, every state and county has different laws and regulations a car is allowed to meet. We recommend consulting your local emissions station or contacting the manufacture for confirmation on the legality of the part in your area.


Helpful (0)

Is this carb/smog legal in CA?


  • The Pypes M-80 Bullet Style Muffler (79-04 All) as with other mufflers are not subject to CARB compliance as they do not control emissions.

    Pat K

Helpful (0)

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Customer Reviews (100+) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 4.396341 4.4
  • Exhaust Note 4.597561 4.6
  • Fit & Finish 4.621951 4.6
  • Bang For Your Buck 4.847561 4.8

  • 1/5

    Installation Time: Afternoon

    April 12, 2012

    Do not buy!!

    I bought these and boy do i regret it. There extremly loud and im not talkin about a good loud either. Really raspy almost sound like a truck with straight pipe. If you go past 2500 rpms you might as well turn the radio off. Sorry should of stuck with magnaflows but that's what you get for trying to save a buck.


    Year: 2002 Submodel: GT Houston, TX, USA

    Helpful (20)

    • Response from AmericanMuscle

      This is the first I've heard someone disappointed with the sound these mufflers give off. I'd suggest coupling these with an O/R X-pipe as some others have commented that the two combined sounds great. If you'd like, please contact our Experts and they'd be more than willing to help you find the sound your looking for!

      Lisa , Customer Care

  • 5/5

    May 04, 2011

    07 GT w/ m80's!

    Had these mufflers installed on my 07 GT, i have a pypes o/r x pipe and had the m80s welded in the middle following a custom axle back muffler delete all the way out, (straight pipes) and dammmn! these are loud! they sound mean! nice deep tone when idle, when you rev it up you will wake up the block! nice mufflers definately buy


    Year: 2007 Submodel: GT

    Helpful (18)

  • 5/5

    October 26, 2010

    Great Sound

    This made my mustang sound amazing. You will defenatly tell the difference when you put it on. I had a muffler shop put mine on and it only took about 20 min and it cost me 40$ all around it was perfect for a deeper tone and I love it. Thanks AM for another great buy.


    Helpful (12)

  • 5/5

    August 23, 2011

    Quiet in the neighborhood, mean on the street.

    Perfect fit with the Pypes "flow tubes" and some cheap auto part store turndown tips. A little weld to put on the hangers or some ingenuity with a pipe clamp and some wire and these will be the last exhaust you need. Racey growl with Pypes offroad X-pipe, no popping or obnoxious noises, makes a Mustang sound like a Mustang. If you like the 2 chamber drone these are NOT the muffler to buy, if you want Ferrari and lambos to take a second look at you these ARE the mufflers to buy. Happy Stangin'


    Year: 2004 Submodel: GT

    Helpful (10)

  • 5/5

    February 15, 2011

    Sounds Awsome!

    These mufflers really brought out the mean sound in my 2000 Mustang GT. Had an Off-road X pipe and the M-80's installed at a local exhaust shop and it turns heads everywhere i drive. I wasn't sure if I wanted to buy these or SLP Loudmouth, but the price caught my eye and was no doubt the right choice! Great Item, Thanks American Muscle.

    Mark S

    Year: 2000 Submodel: GT

    Helpful (9)

  • 5/5

    April 11, 2011

    pypes m80's in an 07 v6

    well ive had 3 different exhaust systems on my 07 v6 and now ive finally found one i liked, combined with the pypes x-pipe...highly recomened


    Year: 2007 Submodel: V6

    Helpful (8)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    August 17, 2012


    flowmasters sound good but weren't loud enough...these sound 1000 &1/2 times better than magna packs... they don't pop alot like borla , the sound is clean & amazing & they are not obnoxiously loud like slp...don't let the cheap price intimidate you..aslo 99% of you tube videos for these mufflers are don't sound anything like they sound in person


    Year: 1998 Submodel: GT Donaldsonville, LA 70346, USA

    Helpful (7)

  • 5/5

    Installation Time: Less than 1 Hour

    February 17, 2012

    WOW just WOW

    ok so i did a ton of research before i pulled the trigger on these, and it still never answered all of my questions so im gonna answer them here in case anyone else is on the fence. Yes they are cheaper than most setups, no it does not reflect the quality at all, they are pretty much built the same as the borla stingers. I had flowmaster 40 series cat back on my car before these, once i added my 4.10s the drone was crazy on the freeway so i started looking for a straight thru muffler, well these have no drone and are nice and mild at crusing speed. I also wanted loud but not annoying, after listening to some LM1s in person they were loud but realy high in the tone and didnt sound great on a o/r x pipe. These on the other hand have a really nice deep ton and wow do they wake up when you get on it, its was really suprising how great they sounded and i could tell a big difference in the low end torque thanks to them breathig way better than the flows. Bottom line they are not a big name that you can brag about, but once you hit it you wont need to brag they do all the talking for you, save you money and run these instead of the high priced name brands, they sound better are built just as good and wow your stang will be fun all over again.


    Year: 1999 Submodel: GT

    Helpful (6)

  • 5/5

    February 19, 2011

    Just what i needed

    All i can say is these mufflers made my stang quite the head turner after i welded them on. The deep rumple of my coming down the road is something that any muscle car enthusiast would appreciate. Great product!!!!!


    Helpful (6)

  • 5/5

    Installation Time: Less than 1 Hour

    October 17, 2011

    My car sounds great now!

    Well, after noticing my mustang needed new mufflers (mine were all rusted out), I started searching for some good mufflers to install. I was looking at glasspacks, but wasn't sure were to start. I was looking at these and read all the 5 star reviews. So I decided to take the plunge and order a couple. Oh my god these are great! I haven't really made any performance upgrades to my mustang (but I want to now!) They have a great throaty sound. They're quiet enough for every day driving, but when you romp on the gas they get nice and loud. I went to go show a buddy of mine, and by the time I got to his house he was already standing in the driveway because he heard me a block away at the stop sign just romping on the gas a couple times. Im very happy with these mufflers and will shop on this site more often :-)


    Year: 1997 Submodel: V6 Bismarck, ND

    Helpful (5)

  • 5/5

    May 12, 2011

    Nice Sound

    These mufflers are pretty awesome. Installed them myself on my 98 V6. Really brought out the sound in my v6. Love them.

    Mike M.

    Year: 1998 Submodel: V6

    Helpful (5)

  • 5/5

    January 21, 2011

    Best sound in town

    Have owned Mustangs since 1965 including three Shelbys but my wife's 98 GT sounds better than any of them since we installed the Pypes. Two other guys in my shop ordered them once they heard mine

    Dan Barkhouser

    Year: 1998 Submodel: GT

    Helpful (5)

  • 5/5

    November 14, 2010

    pipes m 80

    i put these on my 2000 v6 mustang they are amazing im geting the bbk shorty headers and a h pipe and im geting all of it from here


    Year: 2000 Submodel: V6

    Helpful (5)

  • 5/5

    Installation Time: Less than 1 Hour

    August 16, 2012

    Best $90 i have ever spent

    I had these on a stock 03 gt with a catted x pipe and when i first seen these i wasn't expecting much out of them because of the price, but i was wrong. a bit of drone at 1k rpm but after that its pure v8 rumble all the way through the rpm. Very happy with my purchase although looking to take out the cats soon for an even louder sound.


    Year: 2003 Submodel: GT FL

    Helpful (4)

  • 5/5

    Installation Time: Shop Install

    December 21, 2011


    I had Flowmaster Original 40s put on my pony when I first got her.... just b/c of the "Legendary Sound!" And as it goes for Flows they do sound good...if they didn't every other mustang on the road wouldn't have them right? I had my rear cats removed to give me the sound I was looking for and it gave me a good bit more volume and aggression but, still not any thing special. I wanted to make the switch to a straight thru design as opposed to the chambered style and thus I ran across the Pypes M-80s!! I was a bit hesitant and had plenty of second thoughts but rest assured you can not go wrong!!! Best bang for your buck hands down!! Look and finish is awesome!! AGGRESSIVE with a race car inspired tone is the best way to describe it! Bottom line..... stop looking at the $200 SLPs and the outrageous Borla systems!


    Year: 2004 Submodel: GT Greenville, SC

    Helpful (4)

  • 4/5

    Installation Time: Afternoon

    October 09, 2011

    wakes up the v6

    I put 2 on my v6. I cut the restricting y pipe off an that alone freed up the engine.. the I put the mufflers rite after the cats customly dumped the pipes rite befor the tires for the cobra r look... the only bad thing is the stock pipe is 2 1/4 an these inlets are 2 1/2 so need an adapter but thats it... awsome


    Year: 1999 Submodel: V6

    Helpful (4)

  • 5/5

    December 23, 2010

    Fitment with magnaflow

    If you current catback system is set up for an off set muffler set up these will not fit, right out of the box. Will require bending of the tubing on said catback system


    Helpful (4)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    May 21, 2013

    Best bang for your buck

    If your like me and are on a tight budget these mufflers are the way to go. Not expensive and hangs with other higher priced brands plus the exhaust note is amazing. Combined with my Bassani catted x pipe my Bullitt gets compliments of how it sounds. Loud but not to the point of annoyance. Never been pulled over by cops but that's because i keep the rpms low, but after 3k rpm it screams. Overall nice throaty sound, these mufflers will leave you wanting to downshift often just to hear the exhaust note.


    Year: 2001 Submodel: Bullitt

    Helpful (3)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    August 01, 2012

    These Mufflers Are Wicked

    I took the Flowmasters off and replaced them with these M80s. I didn't know what to expect, but let me tell you these mufflers sound absolutely W I C K E D! If you're listening to video on youtube to get an idea of what these sound like, the videos do not do justice. You have to "be there" for your ears to really get the full effect. hahahaaaa Just be careful and easy on the accelerator while in town! Thanks , great service! (as usual) ☺


    Year: 2003 Submodel: GT Greenfield, Oh

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    January 28, 2012


    I had researched these mufflers on youtube and was in love ever since. I knew this was the exhaust my car needed to have! So i ordered them the next day from AM and wow did i receive them fast. I got them in about 4 days and was very pleased with the service yet again here at AM. The following day i had these mufflers installed at my local exhaust shop and couldn't wait to here what they sounded like. I am also running an off road x-pipe on my 2008 GT. After they were installed I started the car up and WOW! You Tube did not do these mufflers any justice. They sounded 100 times better in person. Pypes really nailed it with these M-80 Mufflers. This is truly how a mustang is supposed to sound. I highly recommend this product. It is high quality at a very reasonable price. Everyone always asks me what kind of mufflers I am running on my Mustang, and I am always proud to say Pypes M-80 Bullet Mufflers. Thanks a lot AM!!!


    Year: 2008 Submodel: GT Castro Valley, CA

    Helpful (3)

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