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Pypes M-80 Bullet Style Muffler (79-04 All)

100+ Reviews
Our Price

$51.99

(each)
  • Item #20108
  • MPN# MVR200S

  • Market Price $59.79
  • You Save 13% ($7.80)
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Customer Photos
Features
  • 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
Description
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
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

Most Helpful Reviews

5/5
THIS IS HOW A MUSTANG SHOULD SOUND!!!

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 ...

Read More
Helpful (3)

5/5
Race car sound

i´m running these with a custom o/r x pipe and wow. the sound is AMAZING if you like the loud race car kinda sound.

Helpful (2)

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

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21 Questions / 11 Answers

Ask a Question

Would they still sound good just replacing my stock muffler and stock pipes? I'm just curious to know if anybody has replaced their stock muffler with the m-80 and if it was successful or not. I don't have an aftermarket muffler or pipes everything is stock since i just bought the mustang...

iSayWhtSheFeels

  • If you simply replace the muffler it will definitely get louder and a little performance gain because you're letting the engine "breathe" better, however if you want true sound and power out of your V6, the best thing you can do is dual exhaust it. Then you open your options a lot from there.

    jonnyb8891

    Good Answer (2) (0)

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

Will these work with 1994 Mustang stock exhaust Hello, I have a 1994 Ford Mustang V6. I am hearing a lot about these mufflers, but that they only sound best with X-Pipes. If I have stock exhaust will these then sound bad or should I go for a different muffler? I did not want to get an obnoxious noise or popping because I did not have X-Pipes. Any clarity here? Thanks... :-)

devanslive

  • Any muffler is better than the stock ones. these should be fine and I don't here a big difference if any at all with the X-pipes.

    Lenin1

    Good Answer (0) (0)

Show 3 more answers Question Resolved

How would these sound as just a weld in with everything else stock? Don't want anything overly loud.

MattymagsOrlando

  • I have stock headers, stock midpipe, and the pypes M80's on my 88 lx. You wont be disappointed once you get them installed. I didnt want anything overly loud as well, just a low grumble. They sound really clean and healthy and your mustang wont sound overly obnoxious.

    rubender93

    Good Answer (2) (0)

Show 4 more answers Question Resolved

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Customer Reviews (100+) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Full Day

Installation Cost:0-$100

  • Loudness / Volume 4.479675 4.5
  • Exhaust Note 4.609756 4.6
  • Fit & Finish 4.609756 4.6
  • Bang For Your Buck 4.853659 4.9



  • 4/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    November 23, 2015

    Love the sound

    Installed on my 03 cobra, with BBK o/r xpipe and m80s, terminator sound the way it should! Free quick shipping thank you AM another great purchase.

    Kennet

    Year: 2003 Model: Cobra Driving Style: Street / Strip 'Stangs I have owned: 2 Liberty MO

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    June 17, 2015

    Pypes M80's

    Ordered these after reading many reviews. I was really looking for some relief from the drone of the 2-chamber Flowmasters. Like many others who have reviewed here I will say these are definitely quieter at idle and light cruising. They come alive when you get on it! It's a very different sound than the Flows (at least from inside the car), won't say I like it better. In my own humble opinion I do think the Flows sound better on a Fox than these but they did produce the result I was after. Sounds more like a modern 5.0 (or I'm going tone deaf from the years of drone :P). They did in fact reduce much of the drone. There is still some there but my migraines will certainly appreciate the reduction! Is it a cheap muffler? I say yes in cost only. It's well built and nicely finished. Is it good value? Yes! My exhaust consists of stainless unequal length shorties into a BBK X-pipe with cats, on into (now) these M80's and out through 2.5" tails. I would definitely recommend these to a fox body owner if you are looking for Flowmaster alternatives!

    25aniv

    Year: 1989 Model: Other Driving Style: Show 'Stangs I have owned: 4 Newmarket, ON

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    June 27, 2014

    Great sound in an affordable package

    I have went through 4 different sets of mufflers before finding these and I absolutely love them. My exhaust setup is hooker shorties, 2.5 inch downpipes, 2.5 inch off road H pipe, 2.5 inch dynomax flowtubes, the m80 mufflers, and 3 inch flowmaster tailpipes. These are cheaper than anything els I have found and so far have the best sound as well. Why spend $100 each on some spintechs, magnaflows, or flowmasters when you can get 2 of the m80s that sound better and flow better for less than $100 shipped? I will now be using these on all of my builds when it comes time for exhaust. They are mild but noticeable at idle and when you get on it they really let you know it.

    omarimoe

    Year: 1989 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 2 Waterbury, CT, USA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    January 04, 2014

    Race car sound

    i´m running these with a custom o/r x pipe and wow. the sound is AMAZING if you like the loud race car kinda sound.

    robin02gt

    Year: 2002 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Boca Raton, FL, USA

    Helpful (2) (0)

  • 5/5

    Installation Time: Afternoon

    June 10, 2013

    eliminated the drone

    i have a 2010 v6 and deleted the muffler. i had horrible drone on the highway and this muffler eliminated that. it fit great and looks great too.

    MaxwellMurder

    Year: 2010 Model: V6 Driving Style: Street / Strip 'Stangs I have owned: 1 Butler, PA

    Helpful (1) (0)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    April 16, 2013

    Love these bad boys

    What ever you do don't waste your money on slp & etc. These sound just as good if not better. I just welded them into the middle of the car and made my own cat back system. Sounds great. Thanks AM once again!!

    Nola504Boy

    Year: 2005 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Spring, TX, USA

    Helpful (1) (0)

  • 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 AmericanMuscle.com , great service! (as usual) ☺

    oldfossil50

    Year: 2003 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Greenfield, Oh

    Helpful (3) (0)

  • 5/5

    Installation Time: Shop Install

    February 20, 2012

    Pypes M80 on 2005 Mustang GT

    well i had these installed on my 2005 mustang, im not a big fan of axle backs, when i first had them installed my setup was BBK long tube headers with an Offroad H pipe. the sound was really throaty not too loud or high pitched just a good rumble until really got on it...at high revs they would drone really bad with the offroad H two weeks later i took the H pipe off and put an Offroad X-pipe on and it sounded waaaaay better...no rasp or drone at all with these mufflers and the X pipe combined...my suggestion to anyone looking to get these is to couple it with an off -road X-pipe, its a lot louder and has a cleaner throatier sound than with the H-pipe overall good mufflers and for the price definitely worth it!!

    Abe1

    Year: 2005 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 5 Texas

    Helpful (2) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    January 28, 2012

    THIS IS HOW A MUSTANG SHOULD SOUND!!!

    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!!!

    Travis08

    Year: 2008 Model: GT Driving Style: Show 'Stangs I have owned: 2 Castro Valley, CA

    Helpful (3) (0)

  • 5/5

    Installation Time: Afternoon

    January 27, 2012

    amazing sound

    THE M80'S ARE A REALLY GOOD SOUNDING MUFFLER I WOULD RECOMMEND THESE TO ANY MUSTANG OWNER IVE HEARD THESE ON THE STOCK 4.6 WITH CATS AND THE 79-95 5.0 WITHOUT CATS AND BOTH SOUND AWESOME THEY GIVE YOU THAT NEW 5.0 SOUND WHO WOULDNT WANT THAT AND THEY INSTALL VERY EASY BECAUSE OF THE SIZE AND SHAPE LOTS OF DIFFERENT OPTIONS WITH PLACEMENT

    BLOWN89SALEEN492

    Year: 1989 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 10+ OXFORD PA

    Helpful (1) (0)

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